- HD 1080
- Runtime: 74m.
- Status: Released
0
- Languages: en
- Country: United States of America
- Director: George Englund
- Stars: Joanne Woodward, Stuart Whitman, Edward Mulhare, Alan Napier, Joyce Worsley
- keywords: escaped prisoner, crime wave
- Production_studio: Marten Pictures, Metro-Goldwyn-Mayer
- Slogan: Are we all potential killers?
- The Signpost to Murder is featured in the top rankings of 1964
- #23 in Top Crime Movies of 1964
- #29 in Top Thriller Movies of 1964
An escaped mental patient, reported to be homicidal, hides out in a woman's rural home.
