A Bay of Blood (1971)

An elderly heiress is killed by her husband who wants control of her fortunes. What ensues is an all-out murder spree as relatives and friends attempt to reduce the inheritance playing field, complicated by some teenagers who decide to camp out in a dilapidated building on the estate.

A Bay of Blood is a horror movie featuring Claudine Auger and directed by Mario Bava.

A Bay of Blood is currently streaming for free (ad-supported) on Freevee, Kanopy, Plex, Plex Player, Shout! Factory TV, The Roku Channel and Tubi TV and it's also available on AMC Plus Apple TV Channel , AMC+, AMC+ Amazon Channel, Shudder and Shudder Amazon Channel.