Missing (stylized as missing.) is a 1982 American biographical thriller drama film directed by Costa-Gavras from a screenplay written by Gavras and Donald E. Stewart, adapted from the book The Execution of Charles Horman: An American Sacrifice (1978) by Thomas Hauser (later republished under the title Missing in 1982), based on the disappearance of American journalist Charles Horman, in the aftermath of the United States-backed Chilean coup of 1973, which deposed the democratically elected socialist President Salvador Allende.

Plot

Ed Horman (Jack Lemmon) arrives in Chile to search for his son Charlie (John Shea), who worked as a journalist and disappeared during the recent military coup. Ed meets his daughter-in-law, Beth (Sissy Spacek), with whom he has a strained relationship and they fight over politics. Ed blames his son and daughter-in-law's radical political views for Charlie's disappearance, while Beth blames the American government. Ed uses his connections to meet with various government officials to find out the truth about his son's disappearance.