Olivia and Luca Felicone had known each other all their lives, but they fell in love as teenagers and eloped to London, breaking the hearts of those closest to them. One freezing January night, Olivia's life is shattered when she learns that Luca has been killed in a car accident. Bereft and overwhelmed by grief, she abandons her job and returns to where Luca has been buried. Her chance meeting with Luca's married twin brother, Marc, leads to the realisation that he is experiencing a loss almost as painful as her own. Desolation draws them together into an affair, which fills the space where Luca should be. But the consequences of their actions are explosive and cruel.