When his experiments into a powerful new anesthetic go hideously awry, respected physician Dr. Jekyll transforms into the hideous Jack Hyde. As his wife Elisabeth passes her time in charitable work, rehabilitating the district's fallen women, Hyde is drawn into an escalating cycle of lust and murder that seems to know no bounds.
Unfortunately the movie Edge of Sanity is not yet available on HBO Max.
| Directing | Gérard Kikoïne | Director |
| Writing | Robert Louis Stevenson | Novel |
| Crew | Edward Simons | Additional Writing |
| Art | Fred Carter | Art Direction |
| Costume & Make-Up | Valerie L'Annee | Wardrobe Designer |
| Writing | J.P. Félix | Screenplay |
| Writing | Ron Raley | Screenplay |
| Production | Jacques Fiorentino | Producer |
| Production | Edward Simons | Producer |
| Production | Harry Alan Towers | Producer |
| Production | Peter A. McRae | Executive Producer |
| Production | Maria Rohm | Associate Producer |
| Production | James Swann | Associate Producer |
| Sound | Frédéric Talgorn | Original Music Composer |
| Camera | Tony Spratling | Director of Photography |
| Editing | Malcolm Cooke | Editor |
| Production | Maggie Sanguin | Casting |
| Art | Jean Charles Dedieu | Production Design |
