Stone (1974)

Ken Shorter stars as the titular badass in the Australian biker cult classic Stone (1974). He’s a hard-bitten narcotics detective who goes undercover to investigate the serial slayings of members of the Grave Diggers Motorcycle Club. After being accepted by the ruffians, Stone’s cover is eventually blown and his allies turn on him in barbarically violent fashion—so much so that they actually respect the beating he can take and instate him as a member of the gang. Amidst the ferocious hogs and the beasts who ride them, Rebecca Gilling stands out and strips down. Stone will get you feeling like one where it counts.