The 6th case for Andrina Kaufmann. Andrina finds herself in serious trouble: After she and her fiancé Marco Feller, head of the Aarau criminal police, take a break from their relationship, she is found unconscious next to the body of a young woman. When Andrina awakens, she cannot remember anything. Is she the perpetrator? While she desperately tries to regain her memory, she narrowly survives an assassination attempt. Who is after her? And above all: Why?.