A disgruntled researcher injects his former employers' meal with a serum that turns their sushi into flesh-eating monsters.
Set 2 years after prior film "Bayside Shakedown 3: Set the Guys Loose," a major case occurs that has the potential to take down the entire police organization. For the next 3 days, Shunsaku Aoshima and his colleagues struggle to unravel the case...
