Ivy and Jack have been together for five years. After a fall into the water, Ivy pretends to lose her memory to test the man she loves. He wants to marry Emily, a wealthy heiress, and jumps at the chance to disown their relationship. He even introduces Ivy to his close friend Alex, the heir to a New York financial empire, and claims Alex is her real fiancé. Ivy realizes Jack betrayed her long ago, and she decides to play along with Alex.
As Ivy and Alex grow closer, remorse creeps into Jack, while Emily schemes to sabotage Ivy. Alex's family opposes the match, public scrutiny builds, and conspiracies pile up, but he stays steady. In the end the truth comes out: Alex had known from the start, and his loyalty to Ivy was never a performance.
