Medical student Mia is planning to write a doctoral dissertation on Alzheimer's syndrome. She went to find a woman named Sarah Logan, hoping to shoot a documentary with Sarah's mother Deborah as the subject . Deborah was conservative and rigid. She was in the early stage of Alzheimer's. Although she was quite resistant to the shooting, the poor financial situation at home forced her to accept her daughter's request. After that, the photography team composed of Mia, Gavin and Louis drove to Logan's house in the middle of the jungle. They interviewed people around Deborah and personally recorded all the family's words and deeds.
In the process, Deborah, whose condition is getting worse, has become more and more weird, even to the point of abnormal horror.
