The Other Woman stars Cameron Diaz as a lawyer who thinks she has found Mr. Right. However, she discovers that she is his mistress upon meeting Mrs. Right, as played by Leslie Mann. Instead of tearing out each others weaves, they team up to bring him down. The best way to do that, recruit his younger, hotter, heavy-chested mistress Kate Upton to hit him where it hurts.
Using the unstoppable combination of lawyer powers, light poisoning, and large natural breasts, they strive to take him down without outright stealing the cast dynamic of 9 to 5.