"I'm a man of regrets, my love. I can always think of a thousand ways I could have done things better. But I don't regret him." Married for nearly two decades, Luca and Sebastion know what they want from life and from love, but they certainly don't expect the shake-up that is Alexander Thomas. Their marriage has been open since the start, but it's not until Luca sends a wrong text that they realize there might be room for something...