Der clown (2005)

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.