She sits opposite strangers. What happens when her ex-lover shows up?

Marina Abramovic is a performance artist. In her performance "The Artist is Present", she sits directly opposite strangers who take turns to sit down in the empty chair opposite her. Many turn up. But she probably was not expecting this one person to turn up.

His name is Ulay and he was once her lover. She last saw him decades ago. Today, they meet for the first time in years. See what happens.