Sauerland, autumn 1995: In the middle of the forest on the Wilzenberg, a walker finds the body of high school graduate Sonja Risse. However, the fact that the killer left a music box with the lullaby "Hush Little Baby" at the crime scene does not lead to a clear solving. 25 years later, the investigative journalist Stefanie Schneider, known as "Mütze", made a surprising discovery in Cologne. In a disused multi-storey car park, she films an undressed corpse of a man with a music box running next to it! When her colleague Jan Römer, who reported on the spectacular Sonja case as a young journalist in 1995, recognizes the melody from back then, he immediately believes there is a connection. He goes to Wilzenberg with his ambitious colleague to interview Sonja's mother Maria, her former teacher Waldheim and her best friends. The more the journalists compile, the clearer the contradictions and gaps that the investigators should have noticed at the time.

Sensuous Eva keeps quite a few of the villagers on the go and likes to stir up trouble. But what else can she do in such a sleepy village where even her best friend Katharina no longer has any time for her. When Eva is found dead, the whole village is in turmoil. The presumed killer is quickly arrested: Clemens, the sexton of the local community and a peeping-tom. Katharina becomes more and more suspicious when she finds one of Eva's earrings in the church. Does Christoph - her father - have something to do with the murder of her friend?

The tragic death of a young lady causes a dramatic reunion of an old gunslinger, a prostitute and a suitor. Everyone bears a dark secret on his own and still they are tied to a joint fate. An emotional duel will decide about life and death of everyone...

Colonel Mortimer's son Gregory, his pride and joy, returns to the ancestral Cornish estate by the sea for the summer after loosing that year's only Horse Guards officer promotion to his neighbor-buddy Eric. By ancestral tradition, that means another delay too for his long-planned marriage with neighbor's daughter Rebecca, who already doubts if the are actually in love. Mortimer's new housekeeper Elisabeth proves irresistible for father (platonically) and son, but is held back by a family secret concerning her late mother Catherine. Eric also has a confession to make.

For Olli, one thing is clear: his best friend Matze has obviously been brainwashed by his new girlfriend Rebecca. Her disastrous influence not only jeopardizes their friendship, but above all the trip around the world that Olli and Matze have been planning for years, down to the last detail. So there is only one solution: Rebecca must be stopped! Together with his buddy Schmitti, Olli goes on the offensive. But to everyone's surprise, Rebecca also has a few tricks up her sleeve. The battle is on.