Three months ago, Lena Nguyen’s estranged twin sister, Cambry, drove to a remote bridge sixty miles outside of Missoula, Montana, and jumped two hundred feet to her death. At least, that is the official police version.

But Lena isn’t buying it.

Now she’s come to that very bridge, driving her dead twin’s car and armed with a cassette recorder, determined to find out what really happened by interviewing the highway patrolman who allegedly discovered her sister’s body.