A young woman goes to teach at the Ravenscroft Institute, a spooky old girls' school overrun by ants and staffed by some unusual types. Spurred on by a series of horrific hallucinations, she begins to investigate the mysterious disappearances of … Robert Vaughn, Donald Pleasence, Karen Lorre, John Carradine, Ginger Lynn Allen, Nia Long, William Butler Added on Amazon Prime 2022-04-04. Youtube Trailer