Cribb and Thackery investigate when three female students are out for a midnight a swim witness see a body being dumped in the river. They then find themselves re - enacting scene from Three men in a boat.

When a headless corpse is dragged out of the river it sends Cribb and Thackery investigating into the murky world of bare knuckles fighting.

When a body is found in a bothel Cribb finds himself investigating the murder of the man known as the king of London vice; when a link with a major hospital discovered Thackery has his part to play when he is admitted for an operation to treat a nasty case for the old Farmer Giles.

Cribb and Thackery investigate when one of the competitors in the world Pedestrian championship is murdered.

When Thackery is asked to be the best man of the wedding for an old friend of his father, Cribb discover that several of the young brides previous elderly husbands died suddenly.

When Cribb and Thackery investigate the theft of a valuable painting it sees them enter a murky world of spiritualism and murder.