Let the Right One In (2008)

Let the Right One In is set in cold, dark Stockholm — a fitting locale where one can imagine a tale filled with a vampiric terror taking place. This story, however, is less a terror than a tragedy.

The immortal Eli (eternally age 12), and the mortal 12-year old Oskar (eternally bullied), befriend each other over a Rubik’s Cube. They end up falling for and supporting each other through the darkest of thick-and-thins.

I love the subtle implication that Eli's been through this before. We needn’t know her past in order to understand it, nor her and Oskar’s future.

A definite must-see.