"Heaven" introduces the infamous Casteel family, the least regarded of all the families living in the poverty-stricken foothills of the mountains of West Virginia. Yet the eldest daughter, Heaven Leigh Casteel (Annalise Basso), was still the smartest girl in the backwoods and determined to redeem her family name. However, her dreams become deferred the day her stepmother flees and her selfish father Luke (Chris William Martin) sells her and her four siblings to different families. Heaven is sent to live in the home of Luke's deranged ex-lover, Kitty (Julie Benz), who torments Heaven as Kitty's husband, Cal (Chris McNally) lures Heaven into a forbidden relationship while she fights to reunite her siblings.