Guy, 55 year-old taxi driver, is about to travel with the Eurostar, for the first time of his life : his daughter is getting married. But when he parks to take the train, he discovers concealed in his suitcase, a 7 year-old girl who's from Kinshasa. This is Maïssa. Her demand is clear and non-negotiable : Guy must take her with him to London, in his suitcase.