When flight attendant Cassie Bowden meets passenger Alex Sokolov, she decides to spend an extravagant, very drunk night with him. But when she wakes up the next morning beside a dead body – and with no memory of what happened – Cassie fights to keep her wits about her long enough to make it back to New York, where more trouble looms.

Rattled by her own lies and under pressure from the FBI, Cassie goes against her lawyer best friend Annie's advice to lay low and tries to track down Alex's mysterious business associate Miranda - with bizarre and shocking results. After an unsettling meeting with Agents Hammond and White, Cassie meets the easy-going Buckley on a night out to forget her troubles.