Carnival Of Blood (1970)

aka: Death Rides A Carousel

There’s a killer on the loose at Coney Island – a disturbed and twisted individual who’s been stalking and mutilating women. Dan (Martin Barlorski) has just been made Assistant D.A., and he’s determined to crack the case himself. His growing obsession with the murders has strained his relationship with girlfriend Laura (Judith Resnick). The distraught girl heads to Coney Island to confide in her friend, Tom (Earle Edgerton), a carnival game operator. Tom’s shoulder may not be the best one for Laura to cry on, though. A truly terrifying discovery at his apartment convinces Dan that Laura is in terrible danger. Also with Burt Young (aka: Paulie from the Rocky films).