The Sinner 4x5 Now

: Ambrose and Lou find a bloody object on the Muldoon fishing boat, suggesting a violent struggle occurred at sea.

: Tensions boil over between the Muldoons and the Lam family. It is revealed that the two families have a historical "arrangement" regarding fishing territories that has turned toxic. The Sinner 4x5

: Flashbacks show Percy struggling with an immense, unspecified weight of guilt. She is seen seeking spiritual guidance and clashing with her grandmother, Meg, over the family business. : Ambrose and Lou find a bloody object

: The episode emphasizes how the Muldoon matriarch, Meg, exerts a crushing level of control over her children and grandchildren to maintain the family legacy. The Sinner 4x5