Cheat on the Heiress, Lose the Empire

Vivian, the sole heir of the Morelli crime family, keeps a low profile for safety, letting her boyfriend Ethan run the family in her name. He betrays her by flaunting her yacht, identity, and fortune to please his mistress Chloe, even stealing the Family seal and forging a power-transfer document to seize her inheritance. At the Council meeting, Vivian reveals the heir's ring and damning security footage, exposing their fraud. Ethan loses everything and is imprisoned for life; Chloe is cast out.