1: Part I
Oct 13, 2021
Ambrose visits the town of Clark Harbor for a getaway and finds himself at the center of a tragedy.
Season 4
The Sinner
8 EPISODES • 2021
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
2: Part II
Oct 20, 2021
A new suspect leads the investigation into an ongoing feud between the Lams and the Muldoons.
3: Part III
Oct 27, 2021
Ambrose heads to the mainland to learn more about Percy's past and uncovers dark family secrets.
4: Part IV
Nov 3, 2021
When the Muldoons push to close the investigation, Ambrose refuses, pushing Sonya to the brink.
5: Part V
Nov 10, 2021
Ambrose discovers the source of Percy's ritualistic practices and dives deeper into her past.
6: Part VI
Nov 17, 2021
A shocking new crime further rattles the town of Clark Harbor; Ambrose and Meg team together.
7: Part VII
Nov 24, 2021
Unsure whom to trust, Ambrose hunts down his pursuers.
8: Part VIII
Dec 1, 2021
Ambrose exposes the secret that threw Percy's life off course, setting off widespread consequences.
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