Because the clock maker is not to blame for any of the deaths (he doesn't know the blood that he uses to keep the clock "alive" actually results in the people dying), this is actually a story without a villain, and he is an empathetic main character. His suicide in the end is a way of also redeeming himself and ending the clock's evil. The sister-in-law in this episode is a real piece of work--from beginning to end--and we are glad that she finally gets her comeuppance. Lots of great sound effects in this episode (hundreds of clocks ticking and chiming) and a beating heart (which gives it a Poe-esque "Tell Tale Heart" feel).