- HD 1080
- Runtime: 87m.
- Status: Released
- 0
- Languages: en
- Country: United States of America
- Director: William Castle
- Stars: Glenn Corbett, Patricia Breslin, Eugenie Leontovich, Alan Bunce, Richard Rust
- keywords: california, police, pharmacist, wheelchair, flower shop, murder, mute, killer, proto-slasher, gimmick
- Production_studio: William Castle Productions, Columbia Pictures
- Slogan: A WORD OF WARNING! Please don't reveal the ending of this picture or your friends will kill you - IF THEY DON'T, I WILL!
- The Homicidal is featured in the top rankings of 1961
- #12 in Top Thriller Movies of 1961
- #9 in Top Horror Movies of 1961
A woman named Emily checks into a hotel and offers the bellboy $2000 to temporarily marry her. We soon find out Emily is the caretaker of a wheelchair-bound mute named Helga, who was the childhood guardian of a pair of siblings: Miriam Webster and her half-brother, Warren, who is about to inherit the estate of their late father. Who is the mysterious Emily and what are her intentions?