- HD 1080
- Runtime: 98m.
- Status: Released
0
- Languages: en
- Country: United States of America, Mexico
- Director: Tito Davison
- Stars: Lana Turner, George Chakiris, Karin Mossberg, Dan O'Herlihy, Richard Egan
- keywords: lsd
- Production_studio: Francisco Diez Barroso, Producciones Anco, Warner Bros.-Seven Arts
- Slogan: Johnny was a medical student who did it all with his chemistry set. And the things he did weren't very nice... weren't very nice... weren't very nice... weren't very nice.
- providers: TCM
- The The Big Cube is featured in the top rankings of 1969
- #45 in Top Thriller Movies of 1969
A young woman and her drug addict boyfriend plot to drive the woman's stepmother insane with LSD in a plot to secure an inheritance.