Baffled by a string of athlete murders and mutilations, a police captain (Crox Alvarado) coaxed a wrestler (Wolf Ruvinskis) into acting as bait for the killer. Unfortunately, the perp-a deranged scientist (Carlos Riquelme) transplanting animal brains into humans-captured the grappler... and while he survived the procedure, he'll find the horror's only beginning. Columba Domínguez, Arturo Martínez also star. 80 min. Standard; Soundtrack: Spanish; Subtitles: English. In Spanish with English subtitles.