Trash Fire blazes with pitch-black wit and a dark, volatile story of redemption so good you'll be laughing your way straight to Hell.

While it doesn’t include any literal blazing piles of garbage, Trash Fire is spiteful and unpleasant from beginning to end, using every technique at its disposal — from stinging dialogue to grotesque prosthetics to morbid black comedy — to make the audience uncomfortable.

Some of it is tonally inconsistent and the end feels rushed, but strong performances, especially from the great Fionnula Flanagan, along with Bates’ unique voice keep it engaging.

Neither Bates Jr.’s assured direction nor the strength of the performances can salvage the narrative, which feels overly convoluted and spackled far too much finery.

Loaded with dark humor, Bates’ script faces considerable challenges developing sympathetic characters.