[2] The TV film stars Gil Gerard, Bernie Casey, Wings Hauser, Mimi Rogers, Christina Hart, Brion James, Ron Karabatsos, Mickey Jones, Raven De La Croix, and Robert Dryer.
"Bill" Zerby, a former Marine who, as a Solano County Sherriff's Office narcotics detective, aggressively perused members of the Hells Angels suspected of producing and distributing methamphetamine in the San Francisco Bay Area.
[5] Zerby was injured, suffered severe hearing loss and was forced to retire from his law enforcement agency as a result of an explosive device detonated as he was entering his car in front of his home on January 30, 1978.
[6] He was en route to court for a prehearing in the methamphetamine possession trial of Oakland Hells Angels chapter vice-president James Ezekiel "Jim-Jim" Brandes at the time.
[4][16] Film critic John J. O'Connor of The New York Times wrote in his review: "TRAINING for a new gimmick in the old police-drama formula, Hear No Evil, tomorrow's television movie on CBS, Channel 2, at 9, comes up with a deaf cop.