男人的左手变得特立独行，对自己的主人开起了越来越邪恶越来越有效的恶作剧。 男人在爱丁堡和苏格兰的度假之旅变成了一场与自己的殊死战斗。

"A man's left hand takes on a life of its own and plays increasingly sinister practical jokes upon him. His holiday in Edinburgh, Scotland, becomes a fight for survival....against himself."