Going straight from the sparkly sweat and tequila shots of the club to her first day of a new job, her new boss Lily is unimpressed. Their assignment: to catalogue historic cases of women accused of being witches. After an incident at work, Ash's boyfriend Dom enters the scene as a knight in shining armour, even providing Ash with the best present she could hope for: a pet rabbit. But as the women delve into researching a disturbing series of murders, Lily starts to get the sense that something is wrong with Ash. Or maybe, something is wrong with Dom.