Detective Conan: Series 21 (2007)

An obsessively meticulous mystery writer with a penchant for analogue technology is found poisoned in a sealed room. Meanwhile, the police department is shocked when they spot a ring on Sato's finger...Conan and Heiji reminisce about the first time their paths crossed, three years ago at a ski resort when an actor was found dead in his ski lift chair in a way identical to that of a stunt man at the resort four years earlier...