Dan Garvie’s life has been haunted by the crime he witnessed as a child --- narrowly escaping an encounter with a notorious serial killer. He has dedicated his life since to becoming a criminal profiler, eager to seek justice for innocent victims. So when his father passes away under suspicious circumstances, Dan revisits his small island community, determined to uncover the truth about his death. Is it possible that the monster he remembers from his childhood nightmares has returned after all these years?

At the cusp of graduation, Katie Shaw had big dreams, a devoted boyfriend and a little brother she protected fiercely. Until the day a violent stranger changed the fate of her family forever. Years later, still unable to live down the guilt surrounding what happened to her brother, Chris, Katie struggles to separate the real threats from the imagined. Then she gets the phone call: Chris has gone missing and needs his big sister once more. Meanwhile, Detective Laurence Page is facing a particularly gruesome crime. A distinguished professor of fate and free will has been brutally murdered just hours after firing his staff. All the leads point back to two old cases: the gruesome attack on teenager Christopher Shaw, and the despicable crimes of a notorious serial killer who, legend had it, could see the future.

Twenty-five years ago, teenager Charlie Crabtree committed a murder so shocking that it inspired more than one copycat. Paul Adams remembers the case all too well: Crabtree and his victim were Paul’s friends. Paul has slowly put his life back together but comes back home after his mother, who is suffering from dementia, takes a turn for the worse. Meanwhile, Detective Amanda Beck is investigating another copycat that has struck in the nearby town of Featherbank. Paul’s mother is distressed, insistent that there's something in the house. And someone is following him. Which reminds him of the most unsettling thing about that awful day 25 years ago. It wasn't just the murder. It was the fact that Crabtree was never seen again.

After the sudden death of his wife, Tom Kennedy believes that a fresh start will help him and his young son, Jake, heal. But the town of Featherbank has a dark past. Twenty years ago, a serial killer abducted and murdered five residents. Until Frank Carter was finally caught, he was nicknamed "The Whisper Man," for he would lure his victims out by whispering at their windows at night. Just as Tom and Jake settle into their new home, a young boy vanishes. His disappearance bears an unnerving resemblance to Carter's crimes, reigniting old rumors that he preyed with an accomplice. Now, detectives Amanda Beck and Pete Willis must find the boy before it is too late. And then Jake begins acting strangely. He hears a whispering at his window...