Be silent to live. Leni comes to Hamburg to do an internship. Through a room agency, she rents a room in a villa by the canal. She quickly becomes friends with her roommate, but the next morning, she disappears without a trace. Finding this strange, Leni starts searching for her. Freddy Förster, once a successful businessman, has now ended up on the streets. By chance, he witnesses someone shooting a man at the wheel of his car. To avoid becoming the next victim, he seeks out the murderer. Until he encounters Leni, who refuses to accept the disappearance of her new friend. Soon, the two realize that their cases are more connected than they would like - and that they are in great danger.