Jack Argyll, the estranged member of the Argyll family, was convicted of murdering their matriarch a year prior. However, everything takes a turn when a stranger arrives, asserting Jack's innocence. This shocking revelation forces the family to confront not only their past but also the unsettling possibility that the true murderer could still be lurking within their ranks. Tensions rise as secrets unravel, and loyalties are tested, leading to a gripping exploration of guilt and redemption in the shadow of a chilling crime.