As a pre-40th birthday surprise, FBI hotdogger Gibbons gifts partner Tozzi (Bad Business, etc.) with an introduction to luscious young Stacy, TV spokesperson for a trendy pump-iron health club. On the way out of the bar, however, Tozzi becomes a hit-man's target, is wounded and given a month's leave--which he spends trying to find out who wants him dead, finally narrowing the list to wily Sal Immordino, a wiseguy pretending to be crazy (he prefers a mental institution to a prison cell). But Sal has found ways to sneak out, and his plan is simple--to hit Mistretta, Juicy, and Bartolo (rival mobsters), and, of course, Tozzi, who testified against him. Meanwhile, Gibbons is assigned a temporary partner, agent Cummings, a female psychiatrist with no field experience but plenty of nagging advice. As the bodies pile up, Tozzi and Sal head for a collision--which nearly blows out Stacy's brains and necessitates Gibbons hiding in a casket at a mob funeral. Wryly amusing subplot (Tozzi greeting his 40th with impotence), plus the requisite tough-guy theatrics, makes for a lively fifth appearance of Tozzi and Gibbons.