Joan Hickson stars in two Agatha Christie murder mystery adaptations, featuring the nosy elderly detective from St. Mary Mead. ,  The Murder at the Vicarage Much to the Vicar\'s embarrassment, a murder has been committed in his study. But who killed Colonel Protheroe? Jane Marple is on the case in this classic whodunit. ,  4.50 from Paddington Miss Marple\'s friend Mrs McGillicuddy arrives for a visit to St Mary Mead, claiming she\'s just witnessed a murder during her rail journey from London. She explains how a blind flew up on a train running in the opposite direction, revealing a man strangling a woman to death. But when there are no newspaper reports of a corpse, the spinster sleuth starts a murder investigation in her own inimitable style.