To outsiders, socialite heiress Lexi North's life is perfect. But between yacht parties and shopping sprees, she craves meaning. When her on/off boyfriend breaks it off for good, her world falls apart - and then she accidentally rear-ends Evan Bailey, a ponytail-sporting, heavy metal-loving mechanic. Evan thinks Lexi is rude and a total snob. He only offers to tow her car because she's overpaying. But when Lexi picks her car up the next day, his niece films them arguing, challenging them to swap lives. The video goes viral, reaching Lexi's real estate mogul father, who wants her to prove she can be responsible - by living a regular person's life. Evan's. For two months they'll switch houses, jobs, budgets, everything. And if Lexi gives up early? Her trust fund's gone. Forever. If Evan plays along until the end, he'll give him money that his struggling car repair shop needs to stay open. The bet is on. It doesn't help that Lexi and Evan enrage each other as much as they want to rip each other's clothes off. They only have to survive the summer. Living in each other's worlds. Without falling in love. No big deal.