Winter Kills (1979)

synopsis

This thinly veiled and hyper-paranoiac take on the JFK assassination stars Bridges as Nick Kegan, scion of a fabulously wealthy and powerful family headed by patriarch Huston ("the real delight of the film" - Canby, New York Times), as a character based on Joe Kennedy. Bridges soon finds himself going down multiple rabbit holes while trying to unravel the conspiracy behind the murder of a U.S. president, his older brother.