Add on a thin veneer of mysticism and you have a missing persons story that isn’t revolutionary, but one that throws off convention by just enough degrees to make it worth checking out. “The Sinner” was never just about the answers. Now, more than ever, the man asking the questions has become the show’s biggest draw.

Ultimately, Season 4 understands exactly what changes needed to be made to continue the intrigue. If the theatrics of Season 3 turned you away, Season 4 will bring the mystery lovers of the first seasons back.

“The Sinner” feels more like a familiar mystery series than it did at the best points in the first three years. ... If Kremelberg is meant to be this year's star, she's a cipher to start the season, and other Muldoons feel a bit undefined as well.

This sleuth's psyche is as disturbing as the mysteries he solves in this unsettling franchise. [11 - 24 Oct 2021, p.11]