In an Edinburgh cellar, two gunshots ring out. Across town, Max McCall is released from prison. These two events gradually come together as Max tries to rebuild his life, and new arrival Erin tries to save hers.

When Roy Lynch rebuffs Max’s efforts at a reconciliation, Max turns to Kenny for help - despite their troubled history. However, this is a newly confident Kenny, with a budding new relationship, and he provides Max with a tougher challenge than expected.

To help his daughter, Roy finally turns to Max and Kenny and forces them to help him. It appears that Max’s fall from grace is complete - but he has a secret motivation to reveal.

Written by Neil Forsyth, Guilt stars Mark Bonnar as Max McCall, Sara Vickers as Erin, Stuart Bowman as Roy Lynch and Emun Elliot as Kenny. Also starring Phyllis Logan, Greg McHugh, Sandy McDade, Henry Pettigrew, Rochelle Neil and Robin Laing.

Produced by Eric Coulter (Bodyguard, Shetland) and directed by Patrick Harkins (Tin Star, The A List), the drama is commissioned by Shane Allen, Controller Comedy Commissioning; Steve Carson, Head of Multi-Platform Commissioning BBC Scotland; and Patrick Holland, Controller BBC Two.

The Commissioning Editors for the BBC are Gregor Sharp and Gavin Smith and the indie executive producers are Neil Webster for Happy Tramp North and Nerys Evans for Expectation. Guilt will be internationally distributed by BBC Studios.

Guilt is an Expectation and Happy Tramp North co-production for BBC Scotland and BBC Two.

Tuesdays at 10pm on BBC Scotland, from 12 October

Thursdays at 9pm on BBC Two, from 14 October

All four episodes of Guilt are available to view on BBC iPlayer from Tuesday 12 October at 10pm