Retired police officer Marjorie Pierce is on her way to Lanzarote to track down her old informer, Billy McKenzie. Billy ended Marjorie's career, and she needs an explanation; an apology. Present and past soon collide when gangsters Eric and Mick Maloney turn up on the island with revenge in their veins, and Marjorie has to race against the clock to get to Billy before the brothers. But who is complicit and who can be trusted... and...