From the team behind cult classic The League of Gentlemen, this bizarre gothic comedy sees a chain of events triggered when a mysterious masked stranger contacts five seemingly disparate characters with the chilling message: 'I know what you did'. An embittered hook-handed clown, a desperately misguided midwife, a lovestruck telekinetic dwarf, a blind avaricious collector and a murder-obsessed man-child: all are affected in different ways by the letters, and their already bizarre lives are hilariously turned on their heads.