Accidentally piercing his wife's skin while trimming the hair at the back of her neck, a scientist (Werner Krauss) develops a crippling fear of knives (or anything sharp) and becomes plagued by a maddening series of delusions that fill him with an inexplicable desire to murder his spouse. Eerie work of psychological horror from director G.W. Pabst ("Pandora's Box") co-stars Ruth Weyher, Pavel Pavlov. 75 min. Standard; Soundtrack: music score. Silent with music score.