Amber and Ethan's son Leo has a severe heart condition. Ethan wins thirty million in the lottery, but Amber mistakenly claims an invalid ticket and thinks she's the winner. She demands a divorce, chases her first love, and—pushed by her best friend and old flame—throws a lavish party and opens a high-end shop, drowning in debt. Ethan quietly uses the real prize to treat Leo and grow his auto repair business. Amber lives in her delusion until the day she tries to claim the prize—and the truth hits.