When Rose Ryder stumbles into Valcara, a dystopian purgatory where souls are bought and sold, she is focused on only one thing—reuniting with her deceased younger sister. But after a Valcaran company recruits Rose as their secret weapon, she becomes entangled in an industry that straddles the realms of the living and the dead. She wishes to free herself from the job, but her Valcaran employers hold the ultimate bargaining chip—if Rose refuses to cooperate, they will send her sister’s soul to Hell.