The Deep End of the Ocean(1999)

"Beth Cappadura" (Pfeiffer) is a photographer who is married to "Pat" (Williams), the owner of a restaurant, and they live a good and comfortable life with their three children. Until their three-year-old child goes missing during a trip to Chicago and "Bat" falls into depression. Nine years later, when the family moved to Chicago, the head and figure of one of the neighbor's sons seems very familiar...