Gussie about to kiss a boy for the first time, but she has a rival. Lara can't protect her from this sort of upset.
As Gussie arrives home the phone rings. Lara answers. Her expression changes dramatically. The hospital has a suitable donor heart. The helicopter is already waiting. They must get to London now - quickly.
The operation carries risks, but is successful. Gussie feels incredible. In fact she's never felt this well. It's a heady combination of feeling she can do anything and wanting to catch up on everything she missed by being ill.
In hospital she meets a 16-year old fit and sporty boy. He's also just been given a new heart. The big difference between him and Gussie is that he only became ill recently - a virus damaged his heart. He knows what its like to live life as a well person, as a 'normal' person. Gussie and he become best of friends. He is her role model, not her 'bothering' Mum. He will support and lead her in exploring what life really means. Life becomes exciting.
Lara has to respect her daughter becoming independent. But it's very difficult because looking after Gussie has been her whole life - a habit. The upside is that now she'll have time to find a new life for herself.
Gussie's new friend has the swagger and independence of 'boy as man'; he doesn't always take his prescriptions. There are too many pills. He doesn't need them. He's too busy. He feels well. Very well. Then he dies - in three days...
What's the point of having a new heart if all it does is break?
Life is beautiful. Objects shine from hidden corners, laughter bursts from the unexpected, joy is found in new discoveries, comfort comes from familiar things. Nature is as kind as it is cruel and life is as raw as it is wonderful. You never know what's going to happen.
And that's the point.
A film about living life for today, because there may not be a tomorrow.