Schizoid (1980)

When Dr. Pieter Fales' patients start receiving ominous letters and getting murdered by an unknown black-clad assailant, he and his daughter both come under suspicion.

Directed by: David Paulsen

Starring: Klaus Kinski, Donna Wilkes, Marianna Hill, Craig Wasson, Richard Herd, Joe Regalbuto

Links: IMDb, Movie posters, Movie stills