After the death of her mother and having no other known relatives, Evie (Nathalie Emmanuel) takes a DNA testand discovers a long-lost cousin she never knew she had. Invited by her newfound family to a lavish wedding in the English countryside, shes at first seduced by the sexy aristocrat host but is soon thrust into a nightmare of survival as she uncovers twisted secrets in her familys history and the unsettling intentions behind their sinful generosity.