A love that ends tragically. A new love that begins tragically. A heart that does not stop loving. And in the end: happiness. It has been 400 days. 400 days since Mia's first great love died in a car accident. 400 days since the heart-sick Noah received a second chance at life. When they meet, both immediately feel that they belong together. But unlike Mia, Noah does not know who stands before him. He has chosen not to meet the family of his donor because it somehow feels wrong that he gets to live on – just because someone else has died. Mia acts against his explicit wishes when she sets out to find him. For Mia, it feels as if the world has suddenly become right again. As if life is colorful and beautiful once more. So she hides from Noah who she really is. But how happy...