Jennifer and Ian have known each other for seven years, and for the last five they have been at war. They are the managers of two teams at the same commercial bank in London, between whom quarrels constantly break out. They hate and cannot stand each other, all they do is put a spoke in each other's wheels. Until one day they are forced to work together on a common project: managing the capital of a wealthy aristocrat, a client of their bank. Thus, they have to spend a lot of time together, even after work. But Ian is London's most attractive, rich and desirable bachelor, and his encounters do not go unnoticed: all it takes is an innocent evening in a restaurant to end up on the gossip page of a famous English daily. Jennifer is angry: how can they say she is dating this swaggering supporter class inequality, with this pompous turkey like Ian? He laughs, but is mostly surprised: the photo with his colleague has driven all the annoying fans away from him. And at that moment he makes her an indecent proposal: Ian gives Jennifer carte blanche to work with a rich client if she, in turn, pretends to be his girlfriend. Challenge accepted - the game has begun! However, soon what seemed like a joke to Jennifer turns out to be much more complicated than expected, and the kiss, which was supposed to be part of the performance, causes trembling and completely unexpected reactions...