Heavily pregnant Alex and her partner Leif are preparing for a new life as parents when Alex is suddenly kidnapped. Six days later, she regains consciousness, but the baby is gone and Alex has no memory of the birth.

The investigation into the murder of a prostitute leads the police to the Küfners, a couple who seem to have something to hide. Alex discovers that the dead woman was a surrogate mother.

Alex is certain that someone is trying to sabotage the investigation. Alex hears about Anna Winter, who has also lost her daughter and has never given up the search.

A man is found murdered in a remote industrial area. Alex is summoned and suddenly finds a clue with a link to her own kidnapping.

Alex discovers a connection between the dead Krusowitz and her own ex-boyfriend Jakob, but when she tells Nowak about it, he suspends Alex.

Alex is on the run from her colleagues and haunted by her own fears and self-blame. The search for the truth soon makes her doubt everything, including herself.