Connected through a secure internet location, five serial killers communicate in a unique chat room they have named Jack's Special Place in homage to their ultimate model: Jack the Ripper. And so they are Jack's Boys. They delight in each other's crimes. They relish in taunting police around the world with odd clues and deep confusion --- the modern version of the Victorian-era killer they emulate. They feed on each other's killings and think they're untouchable. Until one day they are hacked. Two teenagers are fascinated by the world of the dark web, where they accidentally stumble upon Jack's Boys in their private space and immediately mock them. This triggers a landslide of anger and revenge as the killers decide to teach the teens a lesson in humility and respect for their betters.

Timothy Warner, a PhD student who goes by the nickname “Moth,” discovers his uncle lying in a pool of blood. The police pronounce the death a suicide, but Moth refuses to believe that his uncle would take his own life. Devastated and confused, he calls on the only person he thinks he can trust: his ex-girlfriend, Andrea Martine. Each battling their inner demons, Moth and Andy travel into dark, unfamiliar territory, intent on finding out the truth about Ed’s death and circling ever closer to a devious mind that will flinch at nothing to achieve his own goal of revenge.

When three red-haired women receive chilling letters in the mail from a killer known only as the Wolf, their lives are upended as they spend every waking moment fearing that their lives could be snuffed out at any time. The Wolf is stalking them, biding his time, waiting for the perfect opportunity to complete his master plan. Yet the one thing this cunning and devious killer didn't plan for is the Reds discovering each other.

Megan and Duncan Richards are no longer the radical activists they were in 1968. Their youth is safely stashed away until the day Duncan answers his phone and gets the message he’s been dreading from the woman he’s spent two decades trying to forget. She called herself Tanya, the beautiful, charismatic leader of northern California’s radical Phoenix Brigade. She assured Duncan and Megan that no one would be hurt in the robbery she’d orchestrated, but when it turned into a slaughter and nearly everyone involved was captured or killed, she laid the blame on them. The Richardses escaped. But now Tanya is free again, poised to avenge her version of what happened so long ago.

When a retired academician witnesses a lovely young woman snatched off the street, he is unsatisfied by the police response and vows to find her on his own. She has been kidnapped and held prisoner by a married couple who have started an exclusive website, “What Comes Next,” on which viewers can watch, in real time, what befalls their victims.

While on vacation in the Florida Keys, Kit Finn meets Matt Healy, a rugged stranger she literally bumps into at her hotel. He offers to cook her dinner when they’re both back in the city. But when Kit arrives at his luxury apartment ready for the date of a lifetime, she is shocked. How could she have been taken in by the deceptions of a con man? And why has he targeted her? Now the only way out is to expose the vicious puppet master who’s turned her life upside down.