Rat Fink (1965)

A sadistic rock singer will do whatever it takes to become a star. After seducing an older woman in order to steal money from her, the singer travels to Hollywood and hires an agent, eventually engaging in an affair with the man's wife. Meanwhile, he also impregnates a clueless teenager and then forces her to get an abortion from a veterinarian, only to promptly dump her when he suddenly becomes famous.