A penniless mother makes an impulsive decision in the jewellery shop where she works, and is propelled into a different world.

Joan falls for Boisie and the opulent lifestyle he shows her, and he recognises her innate talent. Meanwhile, despite enjoying the spoils of crime, she faces scrutiny as a mother.

When an attempt to sell the stolen painting goes wrong and lands Joan in a perilous situation, she is adamant that she and Boisie go straight.

Joan is determined to escape the wrath of the IRA and a lengthy sentence by masterminding an audacious inside man heist, but it may come at a price.

When disaster strikes on the day of the heist, Joan is forced to decide between her dream of a happy family or confronting the consequences head-on.

Joan ups the stakes with her criminal activities, meanwhile Boisie is falling for her, but Kelly is slipping further away.