Suggest a movie title for the following movie plot: In 1984, in a Pennsylvania countryside, an Amish community attends the funeral of Jacob Lapp, who leaves behind a widow Rachel (McGillis) and an eight-year-old son Samuel (Haas). In her grief, she and Samuel travel by train to visit Rachel's sister, which takes them into the city of Philadelphia. Samuel is amazed by the sights in the big city. While waiting for a connecting train at the 30th Street Station, Samuel goes into the men's room and witnesses two men attack and murder a third (Carhart), narrowly escaping detection as he hides in the bathroom stalls. Detective John Book (Ford) is assigned to the case and he and his partner, Sergeant Elton Carter (Jennings), question Samuel. It turns out the victim was an undercover police officer. Samuel is unable to identify the lone perpetrator whose face he saw in the bathroom from a number of mug shots or a police lineup. However, as Samuel walks around the police station, he notices a newspaper clipping in a display case in which narcotics officer James McFee (Glover) is honored for his exemplary service in the line of duty. Book sees Samuel point to the picture and quickly covers over his hand. John remembers that McFee was previously responsible for a drug raid on expensive chemicals used to make amphetamines, but the evidence had mysteriously disappeared. John confides his suspicions to his superior officer, Chief Paul Schaeffer (Sommer), who advises John to keep the case secret so they can work out how to move forward. But John is later ambushed in a parking garage and badly wounded by McFee. Since only Schaeffer knew of John's suspicions, John realizes Schaeffer must have tipped McFee off, and is also corrupt. John calls Carter and orders him to remove the Lapp file from the records. He then hides his car and uses his sister's car to return Rachel and Samuel to Lancaster County. While attempting to return to the city, John passes out in the vehicle in front of their farm. Rachel argues that taking John to a hospital would allow the corrupt police officers...
A:
Witness