The Sinner

Season 4

2021 · 8 episodes · 6h 22m in all · 7.5/10

Still reeling from the trauma of a previous case a year ago, the now-retired Harry Ambrose travels to Hanover Island in northern Maine for a recuperative getaway with his partner Sonya, but when an unexpected tragedy occurs involving Percy Muldoon, the daughter of a prominent island family, Ambrose is recruited to help the investigation, only to be thrown into a mystery of mounting paranoia that will turn this sleepy tourist island, and Ambrose’s life, upside down.

Episodes

1. 

   1. Part I

   13 Oct 2021 · 54 min · 6.6/10

   Ambrose visits the town of Clark Harbor for a getaway and finds himself at the center of a tragedy.

2. 

   2. Part II

   20 Oct 2021 · 45 min · 7.5/10

   A new suspect leads the investigation into an ongoing feud between the Lams and the Muldoons.

3. 

   3. Part III

   27 Oct 2021 · 45 min · 7.4/10

   Ambrose heads to the mainland to learn more about Percy's past and uncovers dark family secrets.

4. 

   4. Part IV

   3 Nov 2021 · 46 min · 7.5/10

   When the Muldoons push to close the investigation, Ambrose refuses, pushing Sonya to the brink.

5. 

   5. Part V

   10 Nov 2021 · 47 min · 7.8/10

   Ambrose discovers the source of Percy's ritualistic practices and dives deeper into her past.

6. 

   6. Part VI

   17 Nov 2021 · 45 min · 7.9/10

   A shocking new crime further rattles the town of Clark Harbor; Ambrose and Meg team together.

7. 

   7. Part VII

   24 Nov 2021 · 43 min · 7.9/10

   Unsure whom to trust, Ambrose hunts down his pursuers.

8. 

   8. Part VIII

   1 Dec 2021 · 57 min · 7.4/10

   Ambrose exposes the secret that threw Percy's life off course, setting off widespread consequences.