Penelope and Madison are identical twin sisters, but they live vastly different lives. Madison married a rich man and enjoys luxury, while Penelope is stuck with a struggling husband. However, when Madison is murdered, Penelope's life is turned upside down. She discovers that Madison's husband, Julien Laurent, has left her a safe worth $10 billion, but it can only be opened on her 24th birthday, just 100 days away. Desperate, Penelope decides to impersonate her sister to claim the safe. But she soon learns that Julien is a ruthless individual, with a hidden empire of illicit dealings - including an underground casino with a long record list of murder. And most importantly, she learns that he had been seeking to eliminate her sister.
