On the face of it, this is just a simple romantic comedy. The three leading characters all engage in a bit of swapping and sharing and somehow you just know that's not going to be much of a recipe for success! . The writing has all the depth of a puddle and there isn't much unpredictable for us here. It does, however, have something about it - there is a dynamic between them and the plot is oddly believable in a mischievous sort of way. It makes for a perfectly watchable hour and a quarter, and leaves you afterwards thinking if perhaps you could suggest your partner were to go live with someone...