Hollywood 90028 (1973)

A young man goes through life detached, alone, and unable to control his psychotic desire to kill the things he loves most. Employed as a cameraman in a seedy porno operation, he spends his days separated from the shame and degradation by the camera he uses to record it. When he is confronted with the reality of an actual sexual encounter, without his camera for protection, he invariably strangles his partner during the lovemaking process. But then he meets a girl...and the nightmare begins!