(1977)
An aging but successful and wealthy crime fiction writer blames her nephew for the death of her niece. One night she invites her nephew up to the house to sign their wills and then gets to leave and return within a few minutes so she can set up her trap, which is locking him in a sound proof safe. Detective Columbo arrives and suspects the writer of murder but clues are few and far between. ebc Written by Scott Dawson