A six-part thriller serial by Margot Bennett
Starring Fay Compton, Guy Rolfe, Barbara Murray, John Justin, Andrew Cruickshank, Peter Sallis

Zoe, the girl in the hat shop, has found tome vital evidence that may throw some light on the murder of Lucy's husband, the former Judge Bath. But when Hugh goes to look for Zoe, she is missing, and Cady quite obviously knows more about it than he is prepared to say...