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.

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

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.