Hard-boiled gumshoe Eddie Valiant lands a plum job as Gary Cooper's bodyguard while Coop scouts locations for his next movie—a screwball comedy titled Hi, Toon! But Eddie's dream job quickly turns into a nightmare. The film's being shot in Toontown, and Coop's co-star turns out to be none other than Roger Rabbit. Eddie's a big fan of Coop. Of Roger? Not so much. Now a sinister hoodlum is threatening to murder Coop if the movie gets made. Before long, Eddie, Coop, Roger, and the ever-glamorous Jessica Rabbit are embroiled in a mystery that could destroy Toontown. When Roger bites off more Toonish trouble than Eddie can swallow, the answer to the question Who Wacked Roger Rabbit? suddenly becomes no laughing matter. "Even the Incredible Hulk calls Who Wacked Roger Rabbit? a SMASH!" —Stan Lee.

The third novel in Gary K. Wolf's Roger acclaimed Rabbit Toontown series.