Tom is married with two kids. After losing two jobs in as many years, Tom is now a house-husband. Tom is having mid-life crisis at 37. Sean, his twin, owns his own business, wears handmade suits, belongs to the right clubs and has reservations at the right restaurants. Sean is the embodiment of successful man. Sean craves stability and domestic bliss. Sean fantasises about packed lunches and playgrounds. Sean is having a mid-life crisis at 37. Tom dreams of a day when his shirt is not dripping with his children's vomit or food. The brothers decide to use the trick of their birth to live each other's fantasies; to live another man's life for two weeks. The only rule: keep Tom's wife, Sara, out of it and do the swap when she is away. But, of course, things are never quite so simple. Sara returns early, Tom discovers all is not so well with Sean's hugely successful business and Sean is developing a serious crush on another mum at the school gates. The lie begins to founder and the truth of what these brothers really want begins to emerge.