Felicitas Frenzel, alias Flix, is an excellent deluxe thief. She knows exactly where to find the most valuable pieces of jewelry during her burglaries and leaves no traces behind. Only once does she make the mistake of stealing gold from an influential mafia boss. He hires private detective Luisa Sander to investigate the theft. Luisa goes undercover as a bartender in a bar known for its shady characters coming and going. And indeed, Flix is often seen there. The thief is immediately fascinated by the cool Luisa and, after a few initial difficulties, manages to win her over - a dangerous game of cat and mouse for love and freedom begins.