The Good Son is a 1993 American psychological thriller film directed by Joseph Ruben and also written by English novelist Ian McEwan. The film stars Macaulay Culkin and Elijah Wood.
Henry soon displays increasingly psychopathic behavior, which Mark is unable to tell Wallace and Susan about due to Henrys dark threats. One of Henrys acts includes throwing a dummy off of a freeway overpass which causes a pileup.Later, Henry plans he will try to kill his sister. Terrified that something might happen to Connie, Mark spends the night in her room. The next morning, Mark awakens to find Henry has taken Connie ice skating. At the pond, Henry purposely throws his sister toward thin ice. The ice collapses and Connie nearly drowns before she is rescued and taken to the hospital. Susan becomes suspicious of Henry when he visits Connies room, planning to smother her, but Susan, who has been sitting in the dark out of view, interrupts him. ........
Source: Wikipedia