Two estranged sisters heal their relationship under supernatural threat after one of them dies.
Liz, an Eastern-European woman with self-esteem issues, meets with friends for a birthday party. They discover the murder of Liz’s estranged sister, Emma, at the celebration house. Soon afterwards, they realize the house is a trap that haunts and kills. Emma’s ghost makes up for her past by trying to help Liz and her friends survive. With distrust and suspicion on all sides, they have until dawn to defeat the killing spirit or be taken by it. They find the way out is for the sisters to join and unite the group.