Following a painful breakup, Abby protects her emotions by hiding from life, until a head injury causes her brain to start losing new memories.

Determined to fight it, Abby sets out to prove her diagnosis wrong by grabbing life with both hands. She'll save her memory by embarking on a list of experiences that will be simply unforgettable.

All seems to be working well, until a trip of a lifetime to New York City, where she bumps into a friendly stranger called Finn.

But is he a stranger after all?