Is it possible to commit murder for the sake of higher justice? Yes, Mr. Todhunter decides, having learned that he himself only has a couple of months left to live. Having developed a plan for the “ideal” crime, he begins to implement it. But... suddenly everything goes wrong, and an innocent person turns out to be under suspicion... The quiet, calm flow of life in the English countryside is unexpectedly disrupted by the death of the head of a respectable family, John Waterhouse. It would seem that this is a fatal accident, Mr. Waterhouse simply “ate something wrong.” At first, this is exactly the conclusion the local doctor gives. However, Douglas Sewell, a friend and neighbor of the unfortunate man, has no doubt: John Waterhouse was killed by someone from his inner circle. And he undertakes to prove it at all costs.