Everyone talks about Cassie (Carey Mulligan) as a very promising young woman… That is, until a mysterious event throws her future out of whack. However, nothing in Cassie’s life is really what it seems to be, as the incredibly intelligent and tantalizingly cunning young woman everyone knows lives a secret life by night.

Haunted by a traumatic event in her past, Cassie begins to avenge what happened in a very particular way, making those men who cross her path pay, with the intention of making amends for the mistakes of the past.