The Passenger by Lisa Lutz

IN CASE YOU WERE WONDERING, I DIDN’T DO IT.I DON’T HAVE AN ALIBI, SO YOU’LL HAVE TO TAKE MY WORD FOR IT…With her husband’s dead body still warm, Tanya Dubois has only one option: run. When the police figure out that she doesn’t officially exist, they’ll start asking questions she can’t answer.Desperate to keep the past buried, she adopts and sheds identities as she flees.Along the way she meets a cop with unknown motives and a troubled woman who sees through her disguise-and who may be friend or foe.But ultimately she is alone, and the past can no longer be ignored…