I'll Keep You Safe [electronic resource] :

-- But the threads of their relationship are beginning to fray. When Niamh accuses Ruairidh of having an affair with Irina, a Russian fashion designer they work with, Ruairidh storms off and gets into Irina's car. Moments later, Niamh watches in horror as the car explodes in a ball of flame. With Niamh a prime suspect in the murder, she begins to suspect that things are not what they seem; and when there is an attempt on her life, she becomes convinced that what looked like a terrorist attack on her lover might be something more personal by far . . .