[Alice made a vague 'it's fine' gesture.] A friend of mine, another detective, was framed for the murder of the woman he loved. The whole of the force had been quite effectively poisoned against him, so he looked to me for help. I'm certain he would have gone elsewhere if he had had that option, but...well. Needs must. [A half-smile and a little shrug.] The situation spiralled from there - as I say, complicated.