Mary is a sweary middle-aged menopausal Glaswegian social worker who, fed up with being "centralised and decentralised to fuck" over the decades has given in her notice, leaving her with one last case before retirement, to keep an eye on a newly-released wife-killer and poster boy for the Men's Rights movement. The blend of sordid goings-on and comedy wasn't totally doing it for me until the last few pages where it all took off.