When a midnight scavenger hunt for a rare bud of weed brings a group of party-hungry stoners to a haunted hotel, they open a portal and unleash a group of ghastly hysterical creatures that has only one mission: party ‘till you die.

When popular Vegas hypnotist Victor Van Pelt inherits Mary Shelley's journal, he believes he has the key to the next greatest Vegas show - bringing life to the dead, live on stage.