Alexander is 30 years old and has never been in love - or has never been in love. He then sees in Paula, a theater actress, the possibility of sharing a future with someone.

The dark secrets of a seemingly peaceful island threaten to swallow up an orphaned student when he grows close to a mysterious new teacher.

The three rich bigwigs Nellie, Max and Janosch visit an illegal luxury underground party under Munich Central Station in search of the next kick. But the party escalates when a fire breaks out. After a mass panic, Max is considered to have disappeared. Nellie and Janosch go in search of their boyfriend and come across a second society, the so-called invisible ones, who live underground.

A young girl falls in love with a poor brewer's son. Their relationship is opposed by the girl's father, a rich mobster who has come to town to try to bully his way into the inner circle of Munich's brewery dynasties.

Eager to make his name in 19th-century Vienna, a hungry young Sigmund Freud joins a psychic and an inspector to solve a string of bloody mysteries.

On the site of a former children's home, the remains of ten babies and one adult are found. At the dead man's ring, a former psychologist recognizes her missing husband. But the police do not believe her and so she goes on her own tracks.

A student of Cathrin is murdered and draped like a doll found on the beach. The dead body corresponds to the imagination of one of Cathrin's patients. Kelly, however, suspects a friend of the dead.

Astrid is in her late forties and has her life firmly under control. She has fallen in love with Paul, and their first weekend trip together takes them to Budapest for a few romantic days, just the two of them. But in the Hungarian capital things happen differently than they'd planned: They run into Julius, Astrid's first great love, whom she'd met at an artists' party in East Germany in 1986.

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.