Sam's father death in a accident. His mother is very sad. So some habits cannot change recently. Such as always put one more set of meal and always open TV in deep night. Those things make Sam scare.
Once, Sam saw a psychiatrists name card in mother's wallet. Sam consider mother has psychiatry. That night, Sam set a camera to record what she happen.
But Sam discover the truth...
Originally, mother found Sam's facebook status are very strange at previous time. Mother considered Sam has psychiatry.
The name card is someone give Sam's mother to help Sam. Finally, Sam appeased by mother and accepted treatment.