The first scene opens with the coven preparing for a ritual, only to discover that Adrian (Rosemary's baby), now eight years old, is missing from his room.
Knowing Rosemary must be responsible for this, the coven members use her personal possessions to enable the forces of evil to locate her.
The next morning, Rosemary's husband Guy, now a famous movie star, gets a call from Roman Castevet.
Marjean is obviously a follower of Roman and Minnie, but she offers to help Rosemary get a ride on a bus to escape.
After a bus finally arrives later that night, Rosemary enters and the doors slam shut behind her before Adrian can get on.
As they prepare for his birthday party, Minnie drugs Adrian into unconsciousness and dresses him up in a costume and devil makeup.
After Guy and Roman join the rest of the coven, they begin to chant, attempting to invoke Satan.
He is kept there against his will, as his fingerprints match the set that the police found on the broken power cord used to kill Peter.
The film ends with Roman and Minnie sitting in the waiting room of a hospital to visit their pregnant granddaughter.
Daniel Goodwin wrote in Scream magazine:This little-seen sequel to Rosemary’s Baby bypasses Ira Levin’s lacklustre literary follow-up Son of Rosemary and catches up with the characters from Polanski’s classic in a gauche and bumbling chase movie/disco horror hybrid.
Director Sam O’Steen, editor of Rosemary’s Baby, and writer Anthony Wilson (The Twilight Zone, Land of the Giants, Planet of the Apes) deliver a hotchpotch of awkwardly lumped together chase and dance sequences, festooned with ham acting, garish fashion, glitter balls and Satanic rituals.
LWHTRB withers into a limp and hackneyed trinket throughout the first half but bounces back into a colourful calamity that lacks the artistry and finesse of Polanski’s original yet is far from a generic retread.