American Mark Jason is stranded in Southeast Asia and works there as a teacher. One day, he finds diamonds worth several million dollars in his apartment.
The Hostage is a 1967 Crown International low-budget motion picture starring Don O'Kelly, James Almanzar and Joanne Brown, with Leland Brown, John Carradine, and Harry Dean Stanton.
A jewel thief crosses paths with a woman carrying a briefcase that the Americans, the Russians and the Chinese all want desperately, so he goes on the run with her figuring that what's inside the case has to be way more valuable than anything he could steal on his own.
Priest is sympathetic and understanding toward mod-era young folks and their new world-view... but he gets in trouble with a biker gang and with a young woman who crushes unhealthily on him.