The black-and-white, scratchy-film-looking opening titles certainly recall this movie's namesake from 1955, but at least when Ralph Meeker's Mike Hammer spoke in that film, his voice wasn't drowned out by overbearing music as are Nick Manning's and Kayden Kross' here.

Fortunately, the music's gone by the time a masked Otto Bauer whips and anally penetrates Audrey Hollander (so what else is new?) while leaving her pussy to various toys. Of course, Audrey then takes on the onlooking "alley rats," sucking all their cocks—action which continues after she's bound into a suspension harness and Otto's fucked her ass in two more positions.

The "mystery" continues as Kayden applies her tongue and fingers to Sadie West's pussy (and vice versa), but once they're done, the plot still makes no sense: Apparently something about running a game on DMV worker Randy Spears, who cons women out of classic cars in exchange for boob jobs—and the heavy-handed allusions to Polanski's Chinatown aren't likely to be missed.

Detective cum gigolo Manning visits Randy's wife (Mia Lelani), with whom he's apparently played roles before, so they establish a "safe word"—"stop"; how inventive!—before proceeding with both cowgirl positions, mish and doggie.

Detective cum hooker Rebecca Blue gets Randy to confess to pretty much everything before she bangs him on his exam table. After inserting a metal hook-like device into her pussy, he fucks her missionarily and she mounts him for a cowgirl ride.

Finally, Kayden handles the blow-off, using Randy's voice to get the classic cars out of the impound lot, then heads to the office for fun time with boss Derrick Pierce that involves his kissing her nylons, tits and pussy before doggie, mish and reverse cowgirl.