a thriller by Derek Benfield May 1982
When Paula answers the doorbell, it is not her lover Mark but a stranger who claims to be her husband James' friend. The visitor seems to suggest they murder James.
A death does occur: Mark--not James--dies in an automobile accident that soon is discovered to be murder. The ever increasing tangle of lies and suspicions soon involves Paula's step-daughter.
Was Mark the intended victim? Accusations and unexpected revelations culminate in a surprising climax.