“Grow up, you shriveled dingus.”

Lowlifes, a Tubi original from co-directors Tesh Guttikonda and Mitch Oliver, offers a humorous and grotesque inversion of the hillbilly cannibal formula popularized by The Texas Chainsaw Massacre half a century ago. Instead of hapless city folk stumbling into redneck country and getting butchered by the inbred progeny of toothless yokels, the family of affluent invaders RV-tripping from LA (Matthew MacCull, Elyse Levesque, Amanda Fix, Josh Zaharia) are themselves the ruthless maneaters, and the backcountry hickfolk (Brenna Llewellyn, Cassandra Sawtell, Richard Harmon, Ben Sullivan, Kevin McNulty), though weird and reclusive, are generally a sweet and innocent bunch who actually do have aspirations and ambitions. A witty script with two workable family dynamics at play, combined with an unusually strong cast committed to the tongue-in-cheek tone, a smattering of practical gore effects, and generally steady direction, make this one a campy delight that doesn’t overstay its welcome.