This is makes it some freaky sad psychological show now
"Full House is a show about a widowed father of two who enlists his best friend and brother-in-law to help him raise his three daughters. What makes it different though is that the entire family suffers from a psychological disorder called Schizophrenia that has them think that there is a toddler present. This toddler would have been the father's third and youngest daughter, but sadly died in car crash along with her mother. The death impacted the entire family so severely, that in order to function properly they pretend the little girl is still alive."
