As instructed, stenographer Shelia Webb let herself into the house at 19 Wilbraham Cresent. It was then that she made a grisly discovery: the body of a dead man sprawled across the living room floor. What intrigued Poirot about the case was the time factor. Although in a state of shock, Shelia clearly remembered having heard a cuckoo clock strike three o'clock. Yet, the four other clocks in the living room all showed the time as 4:13. Even more strangely, only one of these clocks belonged to the owner of the house ...