Illya investigates the mysterious disappearance of cats in Soho, and he and Solo discover that a salon run by Madame De Sala is a front for her plan to develop a rejuvenation process, which De Sala plans to use on the now elderly target of her romantic desires, Sir Norman Swickert. Assisted by Joanna Sweet, a nurse, they end up in the bottom of a wine press. Meanwhile, THRUSH agent Jordin plots to obtain the process for THRUSH.