Nathy, a beautiful stewardess in her fifties, leads a quiet life with her husband Olivier in a suburb of Paris. One day Nathy goes to the airport to catch a flight to Montreal and on the way she notices something really unusual: her schedule is strangely similar to that of twenty years ago. Same destinations on the same dates. Same crew. The band The Cure is also on the plane, just like in 1999 at the moment when a stranger changed his entire life. It was on this same flight that Nathy fell under the spell of Ylian, a passionate and promising young musician who was on The Cure's tour. Nathy married, Ylian free as the wind. Everything separates them. However, an unknown force pushes them towards each other. In four locations, Montreal, San Diego, Barcelona and Jakarta, a game of mirrors happens between 1999 and 2019, Maybe I dreamed too much unfolds a virtuoso mix of passion and suspense.