Simon Sachs, a terminally ill ten year old boy, claims to have been a serial killer in his previous life and apparently he can prove it. He leads a lawyer, Robert Stern, to the locations of the bodies, who were killed long before Simon was born. Stern takes on the most compelling and mysterious case of his life.

It's been five years Martin's family vanished without a trace from a cruise ship. Ever since, the police psychologist is tortured by the thought of his wife having committed a murder-suicide, taking their son with her. He is the only one not willing to believe this. Suddenly, a new lead takes him back aboard the very same luxury cruiser, where once again, a mother and her child have vanished. But this time, the girl reappears - holding a teddy bear that used to belong to Martin's son. Martin soon learns that things are handled differently on the open sea. Not to disturb his passengers' enjoyment of the lavish luxuries of their cruise, the rich owner of the cruiser wants to keep the child out of sight and hides her deep under deck in the quarantine bay. Here, Martin tries to get the traumatized girl to talk to him. But even deeper in the dark underbelly of the ship there is something lurking. And all signs point to a serial killer, just waiting to strike again.

When a single phone call is the difference between life and death: Jan May holds five hostages captive in a radio studio and plays a perfidious game of amok with them every hour. If a caller answers with the wrong slogan, a hostage is killed. Criminal psychologist Ira tries to stop the hostage-taker from killing and to meet his demands. But what nobody suspects is that Jan seems to have a personal connection to the psychologist...

The unsuccessful writer Max Rhode is a law-abiding citizen. But what Max doesn't know yet: In a few days he will commit a crime so horrific that it is hard to imagine for a human being.

A coroner finds a capsule in the head of a heavily mutilated corpse, containing a phone number and single word: the name of his daughter.

Klara is going to die today unless she kills her husband instead. The Calendar Killer has given her that impossible choice. When Jules starts his night shift at a telephone safety helpline for lonely women on their way home, Klara's call reaches him. He soon becomes her last hope for survival and races against time to save her.

A road trip of two strangers through Germany leads to life changing events.