Publisher's Synopsis
For cinema projectionist Sid Elbridge, it seems that things can't get any worse. First, circumstantial evidence has made him a police suspect in their investigation into a robbery at the cinema where he works. Next, his fiancee Vera is horribly killed in the same cinema, the victim of a falling light fixture. When Sid accidentally finds strange, intricate patterns traced in the dust on the wooden frame of a still case, his curious discovery will reveal a ruthless murderer.