Shriek of the Mutilated is a 1974 American horror film directed by Michael Findlay, also known as Mutilated and Scream of the Snowbeast.
The night before the trip, the professor invites Keith to dinner at a restaurant, where he samples an exotic dish named gin sung. The rest of Dr. Prells students attend an offcampus party where they encounter a former student, turned alcoholic groundskeeper, named Spencer St. Clair, who is there with his wife April. St. Clair proceeds to tell everyone within earshot the story of Prells last Yetiseeking field trip, which only he and the professor survived.After the party, Spencer continues to drink, and upon returning home fights with his wife and cuts her throat with an electric carving knife. Afterwards, he climbs into the bathtub fully clothed. He is killed by his not quite dead wife, who drags a toaster into the bathroom and dumps it into the bath, electrocuting him. ........
Source: Wikipedia