"What the Peeper Saw" is a psychological thriller movie that was released in 1972. The movie is about a wealthy authors second wife who begins to suspect that her 12-year-old stepson may have murdered his mother, who mysteriously died in a bathtub accident. The movie is set in a mansion in rural Spain and features Mark Lester as Marcus, the wicked boy who develops an unhealthy attitude towards his stepmother, played by Britt Ekland. The movie involves mind-games and is considered a taboo subject, given the fact that it was released in 1972. The movie is rated R and is available for streaming on Vudu for free with ads or can be bought as a download on Vudu.