Dan Levy and Eugene Levy brought to life the delightful tale of the Rose family in “Schitt’s Creek,” starting from a place of despair—financially devastated and unkind to others—before embarking on a journey toward salvation.

In his new venture, “Big Mistakes,” Dan Levy, together with co-creator Rachel Sennott, shifts the redemption storyline, unveiling a significantly darker narrative of a family embarking on their own decline.

“Big Mistakes” centers on the Morellis, a clan hailing from New Jersey. Linda (Laurie Metcalf), the matriarch and hardware shop proprietor, is gearing up to run for mayor of their quaint town with assistance from her meticulously organized daughter Natalie (Abby Quinn). Her other two offspring are more disordered. Pastor Nicky (Levy) is concealing his boyfriend Tareq (Jacob Gutierrez) from his church community, and educator Morgan (Taylor Ortega) is fed up with her lengthy romance with high school sweetheart Max (Jack Innanen).

Their romantic dilemmas quickly fade in importance. When Morgan pilfers a necklace for their ailing grandmother (Judith Roberts), she and Nicky find themselves working for a local crime boss. Lacking any criminal prowess or interest in the job, their professions as a pastor and educator serve as ideal disguise.

Dan Levy and Taylor Ortega shine as a comedic pair in “Big Mistakes.” Even though tales of reluctant criminal activity aren’t typically engaging, the chemistry between Nicky and Morgan, particularly their hesitance, is enthralling.

In the pilot episode, they unexpectedly end up in the back of gangster Yusuf’s (Boran Kuzum) vehicle. “It’s fully giving kidnap homicide,” Morgan remarks as she climbs inside. “Are those your final words?” Nicky responds, a gun pressed into his back.

This blend of sibling bickering and peril fuels the dark humor of “Big Mistakes.” Whether at a cattle auction or a yacht in Miami, Nicky and Morgan are constantly squabbling. While echoing David and Alexis Rose, the show’s raw thriller atmosphere and tension-filled score by Nora Kroll-Rosenbaum and Peaches distinguish it from “Schitt’s Creek.”

Levy and Ortega thrive as a comedic duo, transforming each illicit transaction into an awkwardly humorous moment. The wider cast is also delightful, particularly Metcalf as Linda. The family grapples with the looming demise of Nonna Morelli, with their mourning evolving into self-absorption. For Nicky and Morgan, it’s merely an inconvenience. For Natalie, it’s an opportunity to outshine her siblings in grief. For Linda, it obstructs her campaign.

“Make my mother’s death convenient for me,” Linda implores her children, underscoring the show’s dark comedy and the Morellis’ self-centeredness as they spiral deeper into criminal disarray.

“Big Mistakes” delves into the stress of Nicky and Morgan’s dual lives while also uncovering warmth in their increasing bond. Levy and Ortega exhibit vulnerability, injecting heart into their abrasive disputes, showcasing their chemistry, and establishing a potentially compelling sibling duo on television.

“Big Mistakes” is currently available for streaming on Netflix.