After discovering her boyfriend (Nikolaj Coster-Waldau) is married, Amber (Cameron Diaz) accidentally meets the wife he's been cheating on (Leslie Mann)... and realises they have much in common. When yet another affair is discovered (Kate Upton), all three women team up to plot mutual revenge on their cheating, lying, ex. Zesty comedy in the 9 to 5 mould.
Revenge couldn't be sweeter for ball-breaking lawyer Cameron Diaz and cuckolded needy wife Leslie Mann when they discover they are being literally screwed by the same man.
New York attorney Carly (Diaz), a commitment-phobe sexual dilettante, thinks she's actually found Mr Right when she dates smooth corporate shark Mark King (Coster-Waldau) for a record eight weeks.
However, her romantic dreams take a cold bath when she turns up at his Connecticut home only to find the sleek love rat is married to Kate (Mann), an insecure and truly desperate housewife.
However, rather than declare handbags at twenty paces, the two cheated women realise they have more than they thought in common, particularly a desire to see Mark pay handsomely for his casual infidelity.
Further investigation reveals that the hunky cad has yet another mistress on the go - Amber (Upton), a dizzy blonde beach babe who's only to happy to join the vengeful duo in their plans for vicious retribution...