Some people go their whole lives without finding the one, but Jenny and Joe always knew they were meant to be. Until they weren't. A freak accident is all it takes to tear them apart.

But Jenny has a secret. Joe never left. He's spent the past five months visiting her whenever she's alone, seemingly just as real - if a little less solid - as ever.

Desperate to spend every waking minute with him, Jenny increasingly isolates herself from her friends and family. But everything starts to change when she meets Luca, the guy now living in her and Joe's old flat.

It's certainly not love at first sight - in fact, they can't stand to be in the same room as each other - but as circumstances throw them together time and time again, Jenny is forced to rejoin the world, and it's not long before she finds herself having fun - something she hasn't been able to do for a very long time.

And then the realisation hits: the more time she spends with Luca, the less Joe appears.