Alexandra, Presumed Dead

Alexandra has lived her whole life being overshadowed by her identical twin sister, Alessana. To help her conquer her anxieties, her twin sister encouraged her to try and switch identities for at least a few days, but they both didn't know the dangers lying ahead.

She is now presumed dead and she has to keep up with their swapped identities. She has to live as Alessana and keep uncovering the secrets that might save them or get them both killed.

Now that they've both separated ways for sudden reasons, would they be able to survive, or would only one end up living?