Usually, London Police Inspector Thomas Pitt did not deal with fires, especially outside his station. But not in case of arson. Namely, the arson occurred in Highgate, a very prosperous suburb of the capital. The picture of the crime was clear - Dr. Shaw's house caught fire in four places at once. The doctor himself was with another patient at that time and was not injured, but his wife Clemency died. High authorities entrusted this matter to Pitt. As usual, his wife Charlotte couldn’t stay away...