Neither The Sea Nor The Sand (1972)

By the late 1980's, Emerson, Lake & Palmer were more than a decade away from the period of their greatest success. They had released a few albums in the late 1970's, and although they still sold reasonably well, neither the critics nor the public were especially thrilled by them. After taking a break for half a decade or so, in the mid-'80s, Keith Emerson and Greg Lake were ready to reunite. Carl Palmer, however, was busy drumming with Asia. So Emerson and Lake hooked up with Rainbow drummer Cozy Powell for one album as Emerson, Lake & Powell, and broke up shortly thereafter…

A Scotland Yard detective is investigating a string of robberies and a murder, and the information he uncovers leads him to the estate of a wealthy but strange English family, who share their mansion with a group of nuns. The detective comes to suspect that neither the family nor the nuns is quite what they seem to be.