Cabo Day of the Dead (1970)

Sinopsis

Four Friends on vacation in Cabo San Lucas during the D de los Muertos festiva get drawn into the supernatural world of the dead. During the night the girls dream, and their dreams become a reality--or do they. All four friends are bound for hours as the Dead use them at will. Friends are made to orally service each other as the Dead control all four girls though out the entire night.