Wait, You're Marrying a Dead Bride!— Episode 5

At my best friend, Sabrina's grand wedding, I, her maid of honor, publicly slapped her. I knew her choice of a white gown was a lie, and everyone seems afraid to call the police. I know for sure that this woman is an imposter, but the real questions hang in the air: who is this woman before me, and where is my real best friend?