Raspberry jam

Millionaire Sanford Embury is found dead in bed, alone, with the door of his second-story bedroom bolted shut from the inside. He was known to be a controlling husband, refusing to give his pretty young wife an allowance of cash or her own checking account. Was his wife a party to the murder, or perhaps did she commit the murder in a fit of rage? Who else had a motive? And how does a clue of raspberry jam point to the killer? Curl up with the classic cozy locked-room mystery from the author of The Clue.