Roz (Robin Wright) and Lil (Naomi Watts) are so tight the former's husband and the latter's colleague think they're more than just friends (or "lezzos", as Lil says) but they get significantly closer when Roz starts sleeping with Lil's beach bum son. After Roz's son sees her emerge from his room with her trousers in her hand and a satisfied look on her face he figures the best way to get even is to seduce Lil. So far, so fucked up, but when the group find out what's going on they don't seem to be too fussed about it. I'm not an expert, but if my best friend starting banging my teenage son I'd be pretty peeved and all they can muster is "How are you feeling?" over a mug of latte. I know Australians are pretty laid back but come on.
The film follows the foursome over an incredibly dull decade that sees other women and eventually children enter their lives but as it skips ahead in time we're left wondering what's actually going on. After Roz's husband moves to Sydney for a good job the pair split but when we find him remarried and with a new baby they don't bother explaining if he knows what's up.
The whole thing is a waste of time and a decent idea that could've made for an interesting film. Avoid.