After his peers' scornful rejection of his mind-control theories send an eccentric researcher (Antonio Jiménez Escribano) into a fatal apoplexy, his collaborator daughter (Mabel Karr) determines to prove them wrong... by brainwashing an exotic dancer (Estellla Blain), arming her with poisoned fingernails, and setting her loose on the soon-to-be-deceased doubters! Jess Franco's over-the-top Eurohorror shocker co-stars Howard Vernon, Cris Huerta.