"I'm as happy as a fiddler," GW Persson told Expressen.
In the TV version, the setting of the story has moved from Sweden to Portland in the US and the main character, policeman Evert Bäckström, has been renamed Everett Backstrom. The Office star Rainn Wilson will play the leading part.
GW Persson did not want to reveal what he will earn from the deal. "I'm not allowed to say. It's top secret. But we're talking big sums of course," he said. He is a well-known criminologist and crime writer in Sweden, and is currently being used as an expert on Swedish Television SVT's "Veckans Brott" crime show.
Speaking about the character himself, Persson told Radio Sweden Bäckström is an "unpleasant character, he has all the prejudices there are", adding that "every police precinct or police station has it's own Bäckström".