Created by Dan Levy and Rachel Sennott. Starring Dan Levy, Taylor Ortega, Laurie Metcalf, Abby Quinn, and Fahim Anwar.

Big Mistakes is a dark comedy about two siblings whose attempt to fulfill a final request for their dying grandmother spirals into a series of increasingly bad decisions.

The less you know beyond that, the better.

Part of the fun is watching Nicky (Dan Levy) and Morgan (Taylor Ortega) repeatedly try to solve problems that somehow get worse with every decision they make.

Family baggage, sibling rivalry, questionable judgment, and an overbearing mother only complicate matters as Nicky and Morgan find themselves in situations that grow increasingly chaotic and dangerous.

Nicky is a pastor who is hiding a relationship and afraid to be himself. Morgan, a teacher, is made to feel like a failure by almost everyone in her life because she lives a little more impulsively. Both are still trying to figure out who they’re supposed to be.

That emotional immaturity becomes both the source of the show’s humor and many of its problems.

The result is a series where every attempt to fix a problem usually creates two new ones.

The characters are self-absorbed. A little out of touch. Frequently oblivious.

Yet they’re also oddly endearing.

You find yourself invested in seeing them get out of this mess despite themselves.

A lot of the appeal comes down to the cast.

Laurie Metcalf is a revelation.

Metcalf has spent decades being one of the most reliable performers on television, but Big Mistakes gives her plenty of opportunities to remind viewers just how funny she can be. Every scene feels sharper when she’s in it.

Dan Levy and Taylor Ortega have terrific chemistry as siblings who bond over their shared insecurities surrounding their more successful sister while simultaneously finding new ways to drive each other insane.

Boran Kuzum balances menace, anxiety, and frustration as Yusuf, the store clerk whose life becomes progressively more complicated the longer he’s forced to deal with Nicky and Morgan.

It’s a familiar premise. Television has spent the last several years exploring this corner of the dark-comedy landscape. Shows like Dead to Me, Based on a True Story, and The Flight Attendant all found humor in ordinary people making increasingly terrible decisions while trying to stay one step ahead of criminals, secrets, and consequences.

Big Mistakes operates in that same space.

And while it’s not breaking any new ground so far, it’s still a lot of fun.

Verdict: I’m On Board