On the surface Geoffrey and Diana live a happy life, but one of them has a lover, and plans the death of the other, after murder occurs, the body vanishes, and phone calls from the deceased start.
A cigarette case appears in Diana's coat, trouble is she's never seen it. A mysterious telephone call and a body in a quarry throw up an unexpected question. Is Geoffrey Stewart really dead?
Local shopkeeper Miss Tracey contacts Mark, explaining that she knows everything. Mark and Diana hatch another plan. Thelma contradicts Diana's account of the phone call.