A teenage girl lives with her grandmother and worries she will be removed by social services. She sets off to get adopted by someone she admires more than anything, one of the most powerful women in the world.

Paul Château-Têtard, a 45-year-old bachelor from the best of Parisian nobility, has – for the first time in his life – to take the Metro, and even buy a ticket. It is with extraordinary luck that the beautiful young Ava happens to be sitting at the counter: a spark ignites and wedding bells begin ringing in the distance.