Claire Brunetti : Piste noire (2009)

Former secret government agent Max Hecker (Sven Martinek) disguises himself with a clown mask in order to fight international crime. He hangs up his mask when one of his supporters, journalist Claudia (Diana Frank), is murdered. Four years later, he must put it back on as Claudia's sister Leah (Eva Habermann) is kidnapped by the same people that killed Claudia.

Marion is a high-powered cop. Luc is a gentleman thief. He thinks she's a lawyer, she thinks he's in real estate. They're married, with two kids, and are each blissfully ignorant of each other's double life.