The rain fell hard on the dark street. Detective Shaw pushed open the heavy red door. The room was silent as an ancient tomb. He walked toward the body on the floor. Blood pooled around the head of the victim. A gold necklace lay near her outstretched hand. Shaw knelt down to look for any clues. The windows were locked tightly from the inside out. A faint smell of smoke hung in the air. Shaw knew this was a locked room mystery.