When innkeeper Dorthe Hyllested is found murdered, the police are surprised and puzzled to discover a concealed nursery in her upstairs apartment. As far as her friends and family knew, the recently widowed Dorthe was childless. So who lived in this secret toy-strewn room? And, more importantly, where is the child now? Detective Louise Rick has just taken on a challenging new job as head of the freshly created Mobile Task Unit, which is charged with solving the most difficult cases all over Denmark. Could the mystery of Dorthe’s murder and the hidden child have something to do with the cabin in the woods behind the inn where men are often seen coming and going at all hours? Louise finds herself grasping at unlikely connections, but the twisted story she begins to uncover turns out to be darker and more dangerous than she ever imagined.

Everything is peaceful in Tommerup, Denmark, until a young mother disappears in the middle of an idyllic summer day. There’s no trace of the missing woman when Chief Superintendent Liam Stark and Superintendent Dea Torp are called to investigate. When another person goes missing, and Liam and Dea find a strange note linking the second missing person to the first crime, they suspect the disappearances may be the work of a serial killer. As the investigation continues, dark secrets about the victims from the past are revealed. Is someone targeting them because of this? As more people vanish, it’s a race against time for Liam and Dea, who find themselves face to face with horrifying footage that reveals what is happening to the victims --- and what will happen to future targets if they can’t stop the killer.

Detective Louise Rick is on a beach in Thailand when the panicked call from her father comes through. Louise′s beloved brother, Mikkel, has attempted suicide. His wife, Trine, left him days earlier, walking out the door one day with no warning and leaving Mikkel devastated. Louise rushes home to Osted, the small, insular Danish town where she grew up and where Mikkel still lives. But the more Louise learns about Trine --- a devoted wife and the mother of two young children --- and her state of mind in the days before she left Mikkel, the more Louise begins to wonder if Trine really meant to leave him. Or if something much darker may have taken place.

Ilka Jensen's life is in chaos following the tumultuous events of HER FATHER’S SECRET. The funeral home she inherited after her estranged father's death is bankrupt. Her new business partner, Artie, lies unconscious in the hospital after a savage attack by mysterious assailants, and her father's second wife is in prison. Then, just as Ilka learns a shocking revelation about her father, two menacing strangers turn up at the funeral home. In order to protect herself and those around her, Ilka sets off on a twisting journey to confront the truth about the man who abandoned her as a child. But the long-buried secrets of her father's past are more tangled and perilous than Ilka ever could imagine.

After suddenly inheriting a funeral home from her father --- who she hadn't heard from in decades --- Ilka Jensen has impulsively abandoned her quiet life in Denmark to visit the small town in rural Wisconsin where her father lived. There, she's devastated to discover her father's second family: a stepmother and two half-sisters she never knew existed and who aren't the least bit welcoming, despite Ilka's efforts to reach out. Then a local woman is killed, seemingly the unfortunate victim of a home invasion turned violent. But when Ilka learns that the woman knew her father, it becomes increasingly clear that she may not have been a completely random victim after all.

A young woman is found strangled in a park, and a male journalist has been killed in the backyard of the Royal Hotel in Copenhagen. Detective Louise Rick is put on the case of the young girl, but very soon becomes entangled in solving the other homicide too when it turns out that her best friend, journalist Camilla Lind, knew the murdered man. Louise tries to keep her friend from getting too involved, but Camilla has never been one to miss out on an interesting story. And this time, Camilla may have gone too far.

Ilka Nichols Jensen learns that her father --- who walked out suddenly on the family more than three decades ago --- has died and left her something in his will: his funeral home in Racine, Wisconsin. Clinging to this last shred of communication from the father she hasn't heard from since childhood, Ilka makes an uncharacteristically rash decision and jumps on a plane to Wisconsin. She plans to visit the funeral home and go through her father's things before preparing the business for a quick sale. But when she stumbles on an unsolved murder, and a killer who seems to still be very much alive, the undertaker's daughter realizes she might be in over her head.

When the granddaughter of the wealthy Sachs-Smith family is kidnapped, Louise Rick's skills as a trained negotiator are put to work. She is tasked with helping the desperate mother negotiate what soon turns into a life-or-death situation. The kidnappers will only exchange the deathly ill little girl for an infamous stained glass panel --- known as the Angel of Death --- that has been in the family for generations. But the Angel was recently stolen from the family home. Racing against the clock as she matches wits with a criminal mastermind, Louise will be taken to the depths of human depravity. Will she be able to find the little girl before her time runs out?

Detective Louise Rick gets a call from her son, Jonas. It's every parent's worst nightmare: A school party has ended in terrifying chaos after a group of violent teenagers forced their way into the building in search of alcohol and valuables. Dashing to the scene, Louise discovers one of the students gravely injured --- struck by a car while attempting to run for help. Now the girl's distraught mother, pushed to her emotional breaking point, will do anything to make those who hurt her daughter pay. So when someone targets the gang members with a vicious attack, the girl's mother is the obvious suspect. But Louise can't shake the feeling that the case might not be as cut-and-dried as it first appears.

A housewife is the target of a shocking, methodical killing. Though murdered in England, it turns out that the woman, Sofie Parker, is actually a Danish citizen who's been on the Missing Persons list for almost two decades --- so Louise Rick is called on to the case. Then, in an unexpected twist, the police discover that Sofie had been reported missing 18 years ago by none other than Eik, Louise’s police colleague and lover. Impulsive as ever, Eik rushes to England and ends up in jail on suspicion of Sofie's murder. Louise must set aside her own emotional turmoil if she hopes to find the killer in what will become her most controversial case yet.

Following an extended leave, Louise Rick returns to work at the Special Search Agency, an elite unit of the National Police Department. She's assigned a case involving a 15-year-old who vanished a week earlier. When Louise realizes that the missing teenager is the son of a butcher from Hvalsoe, she seizes the opportunity to combine the search for the teen with her personal investigation of her boyfriend's long-ago death. As she moves through the small town's cramped network of deadly connections, Louise unearths toxic truths left unspoken and dangerous secrets.

An older woman recognizes the body of an unidentified woman as Lisemette, a child she once cared for in the state mental institution many years ago. Lisemette, like the other children in the institution, was abandoned by her family and branded a "forgotten girl." But Louise Rick, the new commander of the Missing Persons Department, soon discovers something more disturbing: Lisemette had a twin, and both girls were issued death certificates more than 30 years ago.