A disease carried by common cockroaches is killing Manhattan children. In an effort to stop the epidemic an entomologist, Susan Tyler, creates a mutant breed of insect that secretes a fluid to kill the roaches. This mutant breed was engineered to die after one generation, but three years later Susan finds out that the species has survived and evolved into a large, gruesome monster that can mimic human form.

Old Nat Moyer is a talker, a philosopher, and a troublemaker with a fanciful imagination. His companion is Midge Carter, who is half-blind, but still the super of an apartment house. When he is threatened with retirement, Nat battles on his behalf. Nat also takes on his daughter, a drug dealer, and a mugger in this appealing version of a really 'odd couple'.

Al Fountain, a middle-aged electrical engineer, is on the verge of a mid-life crisis, when he decides to take his time coming home from a business trip, rents a car, and heads out looking for a lake he remembers from his childhood. But his wandering takes him into the life of Kid, a free-spirited young man who helps Al escape from the routine of everyday life and find freedom to enjoy himself.

Sully is a rascally ne'er-do-well approaching retirement age. While he is pressing a worker's compensation suit for a bad knee, he secretly works for his nemesis, Carl, and flirts with Carl's young wife Toby. Sully's long- forgotten son and family have moved back to town, so Sully faces unfamiliar family responsibilities. Meanwhile, Sully's landlady's banker son plots to push through a new development and evict Sully from his mother's life.