Oblio completely forgotten

Annabella lives in fear of forgetting her child, Greta, in the car, after her best friend has lost his baby, for the same reason. One day, on the internet, she discovers that a mother has implemented an infallible system to prevent the tragedy from happening. Will Annabella, despite the precautions, be able to make sure that she doesn't fall into that state of oblivion, of dissociative amnesia.