Beth is on the eve of being committed to an Alzheimers unit, but firstly she disappears to a place that exposes a decades old secret.

1. Not sure what "disappears to a place that exposes a decades old secret" means? 2. Character names are not usually given in log lines. 3. What is the connection between Alzheimers and her disappearance? 4. "Firstly" indicates she returns from this "place" and is then committed. 5. Is this disappearance voluntary or is she "snatched," etc.? 6. Is this a physical place or somewhere in her mind? 7. Will exposing the "decades old secret" save her from being committed ?

Maybe: A woman afflicted with Alzheimers struggles to expose the decades old secret that will save her from being committed for the rest of her life.