Race car driver Alan Colby and his new wife Denise are involved in a car crash where he sustains a serious head injury, causing him to have murderous feelings toward Denise. After Denise persuades him to honeymoon with her on the Cote D'Azur in France, they enlist the aid of a French psychiatrist who offers to regress Alan back to the time of the accident and cure him.

• Hammer Film Productions
• Falcon
• Ronald Lewis
• Diane Cilento
• Claude Dauphin
• Françoise Rosay
• Bernard Braden
• Katya Douglas
• Barbara Chilcott
• Anne Tirard