Exactly a Year

A year has passed — exactly a year since Nina is gone.
Leo doesn't remember what happened the night of the accident. All she knows is that she left the party with her older sister, Nina, and her boyfriend Ist. Nina... died at the hands of a drunk driver, leaving Leo with a hole in her heart the size of an entire universe.
Ist loved Nina as deeply as Leo loved her. And it seems only he can understand her feelings. Their friendship strengthens on the grounds of shared grief. But while Leo painfully tries to piece together the circumstances of the disaster, it turns out that Ist remembers everything down to the last detail — and has no intention of telling Leo about it.
Days follow one another, and Leo's world is falling apart. Will she be able to move on without ever knowing what happened that night? And is happiness even possible in a world without Nina?