Stone Mattress (1970)

Physiotherapist Verna embarks on a luxurious cruise into the magnificent and silently thawing Arctic Northwest Passage. On the ship, Verna meets the friendly and charming Grace, and the seemingly ordinary Bob, who tries to seduce her. As wounds and humiliations from her past resurface, the smooth atmosphere of the cruise will be disturbed by Verna’s quiet, yet shocking act of vengeance.