Based on a comic by Philippe Foerster. The phone rings in the office of private detective Bellytail. As the caller, Plattenberg, tells the PI his story, the images unfold. plattenberg lives with his wife and their deformed kid, Runt, who is only a living head. Mrs Plattenberg is driving him crazy with playing piano to a dancing spider. Drunk one night, Plattenberg kills the spider, sending his wife into a catatonic state. But secretly, Runt is plotting his revenge.