Watch In the Heat of the Night: By Duty Bound (1995) HD Full Movie Free on solarmovie.do. Watch In the Heat of the Night: By Duty Bound (1995) online free. When Gillespie runs for a permanent position as county sheriff, his running mate is investigated for...When Gillespie runs for a permanent position as county sheriff, his running mate is investigated for allegations of insurance fraud, corruption and murder.