“The Girl With the Sturgeon Tattoo: A Parody” by Lars Arffssen (St. Martin’s/Griffin, 201 pgs., $9.99)

In “The Girl With the Sturgeon Tattoo,” somebody’s strangling female reindeer all over Sweden. These strange deaths are somehow tied to the decapitation murders of two writers: the author of a bestselling book on Baltic sturgeon and a thriller writer with a manuscript that reveals the Nazi origins of furniture giant UKEA.

Got that?

As for the Swedish authorities, they think a single culprit is responsible, someone described as “a psychopathic serial killer who’s probably also a world-class surgeon … or an experienced samurai warrior.”

“Sturgeon Tattoo” is the kind of book Stieg Larsson might have dictated from beyond the grave to Mel Brooks.

Or to the Swedish Chef on “The Muppet Show.”

When flabby, crusading journalist Mikael Blomberg becomes involved in trying to solve one of the murders, naturally he winds up involved in the entire mess — and so does a skinny computer hacker named Lizzy Salamander.

Is it any surprise that a book’s being published that lampoons one of the hottest publishing phenomena in recent years, Larsson’s “Millennium” trilogy?

“Sturgeon” takes place after Larsson’s trilogy ends and loosely relates to it: Lizzy’s living quite well on the millions she siphoned from a corrupt corporation; she’s also managed to survive gunshots to the head with no apparent damage (but it has improved her chess-playing skills). Still, she gets tired of people saying she’d be a dead ringer for Pippi Longstocking if she grew out her hair.

And she still has a tendency to grab furniture legs to club mean husbands, earning her a reputation as a “gender vigilante.”

Her violent history makes her an obvious prime suspect for the decapitations of the two male writers, but investigators also have an irrefutable piece of evidence: a hidden security video that shows Lizzy using a samurai sword on one of her victims. Wait, is it her? Lizzy has a dinosaur tattoo on her back, but the murderer in the video has a caviar-producing fish tattoo. What’s going on? Is Lizzy being framed? The local paper doesn’t sweat over the details. Its headline declares: “Sweden’s Most Dangerous Woman Under Five Feet Charged in Double Homicide.”

The author, Lars Arffssen, is familiar enough with Larsson to riff on some of the trilogy’s signature themes, and he captures perfectly Larsson’s tendency to spend way too much time on extremely useless details about smartphones and computers.

And here’s something else: At 200 pages, “The Girl With the Sturgeon Tattoo” is about 150 pages too long. At the length of a regular novel, it’s got to give the reader something more nutritional than just parody to digest. Without it, the jokes wear out mid-story.