They Slay (1970)

Longtime friends Raemee, Maggie and Lee come together for an annual Halloween hang-out at Lee’s house. Things are different this year when Maggie's new partner, Sam, and Lee’s younger sibling, Charlie, join the group. When they reignite their tradition of playing with a spirit board, they accidentally invite a supernatural being to join in the party. Uncomfortable truths rise to the surface and things take a dark turn, calling into question if the friendships will survive the night- or if the friends will survive at all.