Avid antiques collector Pierre-Francois Chaumont unearths the find of a lifetime at a Paris auction house: an 18th-century portrait of a gentleman who looks just like him. Researching into the painting's history, he has the chance to abandon his tedious existence and walk into a brand new life.

In 1760, Guillaume le Gentil, real-life astronomer to King Louis XV, sets out for the oceans of India to document the transit of Venus. The weather is turbulent, the seas are rough and his quest may be more complicated than initially thought. 250 years later, estate agent Xavier Lemercier chances upon Guillaume's telescope in a property he's sold. As he looks out across the rooftops of Paris, he discovers an intriguing woman with a zebra in her apartment. Then the woman walks through the doors of his office, and his life changes forever.

When Hubert Larnaudie invites some fellow residents of his Parisian apartment building to drink an exceptional bottle of 1954 Beaujolais, he has no idea of its special properties. The following morning, Hubert finds himself waking up in 1950s Paris, as do antique restorer Magalie, mixologist Julien, and Airbnb tenant Bob from Milwaukee, who's on his first trip to Europe. After their initial shock, the city of Edith Piaf and An American in Paris begins to work its charm on them.

Dining alone in an elegant Parisian brasserie, accountant Daniel Mercier can hardly believe his eyes when President François Mitterrand sits down to eat at the table next to him. After the presidential party has gone, Daniel discovers that Mitterrand’s black felt hat has been left behind. After a few moments’ soul-searching, Daniel decides to keep the hat as a souvenir of an extraordinary evening. It’s a perfect fit, and as he leaves the restaurant Daniel begins to feel somehow...different.

When headhunter Fabrice Valantine faces a smoking ban at work, he decides to undertake a course of hypnotherapy to rid himself of the habit. At first the treatment works, but his stress levels begin to rise when he is passed over for an important promotion and he finds himself lighting up again - but with none of his previous enjoyment. Then he discovers something terrible: he accidentally causes a man's death, and needing a cigarette to calm his nerves, he enjoys it more than any other previous smoke.