[2][3] The protagonist of the book, like his predecessor, is Inspector Frans J. Palmu, who sets out to investigate a rich victim who appears to be died in an accident, but which is revealed to be murder.

On the basis of the book, a film adaptation by the same name was made in 1960, directed by Matti Kassila, in which Palmu is played by Joel Rinne.

[4] Directed by Mika Waltari's grandson Joel Elstelä, the first theater adaptation of the book was in the Helsinki City Theatre's repertoire from August to December 2016.

[5] At the end of 2017, a new arrangement with Palmu starring Ismo Sievinen premiered at the Mikkeli Theatre.

Kivinen's performance of Palmu was mixed opinions by reviewers, but Sievinen has been considered a successful choice.