A doctor in early 19th-century Germany becomes infatuated with the sister of a man he unintentionally killed and bargains with the Devil incarnate to conjure their union in exchange for his soul.

William Brown, a neurotic, self-absorbed musician determined to finish his prog-rock magnum opus, faces a creative roadblock in the form of a noisy and grotesque neighbor named Vlad. Finally working up the nerve to demand that Vlad keep it down, William inadvertently decapitates him. But, while attempting to cover up one murder, William’s accidental reign of terror causes victims to pile up and become undead corpses who torment and create more bloody detours on his road to prog-rock Valhalla.

Away from home in a boarding school, 18-year-old Dhruv is ignorant about the ongoing crisis in his family. His life takes an unexpected turn as he gets the news of his father’s death in a car accident. As he copes with the tragedy, hidden truths begin to unravel. Even as his mother Nandini struggles to shield him, Dhruv starts looking for answers. Was his father's death an accident or a premeditated murder? The search leads to a series of unexpected revelations, as he discovers the shades of his father’s personality he had never seen before.