Livia is finally having the birthday party she always dreamed of. When she and her husband Adam fell pregnant as teenagers, she was disowned by her parents. Their marriage has had its ups and downs, but now, twenty years on, they are blissfully happy now with their two grown-up children, Josh and Marnie. And tonight, Adam is throwing Livia the party of a lifetime, to make up for the fairytale wedding they could never have.

Marnie has been studying abroad and can’t make it to the party. Livia can’t help but be slightly grateful for this, as she’s recently uncovered a secret about their daughter which, if revealed, will shake the foundation of their family to its core. For just one night, Livia wants everything to be perfect.

Adam, meanwhile, has set up another surprise for his wife: Marnie will be secretly flying back for the family celebration. But soon it emerges that Adam is faced with a dilemma of his own, and he too may have to keep a terrible secret. After all, if you could give the person you love the most in the world a few more hours of happiness, you would . . . wouldn’t you? As the day of the party dawns, one thing is clear: Marnie’s arrival could shatter everything.