Maniac Cop (1988, dir. William Lustig)

A kill-happy cop returns from the dead to get revenge on the NYPD. Patchy late entry in the slasher cycle, this has some of the quirkiness of writer/producer Larry Cohen’s best work, but is let down in places by flat performances and unimaginative direction.

Maniac (1980, dir. William Lustig)

A mother-obsessed New York loner goes on a killing spree. De Palma-ish slasher, with the expected Hitchcock and giallo references. Maniac works because of its grubby style, its still-effective gore, decent direction, and a sweaty central performance.