J. Carroll Naish, Ralph Morgan, Wanda McKay, Tala Birell, Glenn Strange. A very perverse plotline not often found in low budget cheapies from the '30s and '40s. A mad doctor falls in love with the daughter of a classical pianist. He then injects the pianist with a serum that turns him into a horrible monster, bargaining the cure for the hand of the daughter. There's a killer ape in the lab, too! One of PRC's better horror efforts. From 16mm.