Fair Play (1925)

Norma Keith, an industrious secretary, helps Bruce Elliot rise from obscurity to a position of increasing prominence as a criminal lawyer. Norma's devotion goes unnoticed, however, and Bruce marries a mercenary blonde schemer named Rita Thane. When Rita is accidentally killed, Bruce is convicted of murdering her on damaging circumstantial evidence. Norma then scouts around in the underworld to find evidence to set Bruce free.