Monkey Business

Esther the chimp breaks loose in the Oxly chemical lab, rummaging through equipment and accidentally tipping a beaker of rejuvenating chemicals into the water cooler. The workers miss the incident as they focus on their experiments. The contaminated water begins to produce a youth-boosting effect whenever someone drinks it, setting the stage for the day’s chaos.

Barnaby volunteers to test the latest concoction, hoping for a breakthrough. He experiences a rapid surge of energy and sociability after the serum is injected and he drinks water from the cooler. He soon behaves like a twenty-year-old and heads out on the town with Lois Laurel, oblivious to the consequences.

Lois Laurel spends the day with Barnaby as his new vigor takes hold. They enjoy carefree activities and flirtatious moments, while Barnaby relishes his reclaimed youth. The episode foreshadows how the elixir affects all who touch it.

Edwina, Barnaby's wife, drinks the serum from the cooler and instantly transforms into a prankish, impulsive schoolgirl. Her change unsettles Barnaby and unsettles their routine, as she acts with youthfully reckless confidence. The household begins to realize the formula is more than a harmless experiment.

Edwina places a phone call to her old flame and family lawyer, Hank Entwhistle, as if to test the boundaries of her new persona. The call broadens the social reach of the mishap and stirs up old loyalties. The family circle starts to fracture under the strain of the elixir’s effects.

Edwina’s mother, unaware of the chemical influence, misreads her daughter's mood and believes she is unhappy in her marriage. She implies a divorce to settle the situation and tries to intervene. The misunderstanding compounds the pressure building around the couple.

The next morning, Barnaby and Edwina go to the laboratory to destroy the formula. In a twist of fate, they both drink more of the contaminated water while making coffee, sealing their own exposure. Oxly and the board arrive, pressuring Barnaby for a sale while he’s clearly under the serum’s influence.

Under his altered state, Barnaby becomes a focal point for pressure as Oxly and the board attempt to secure the formula. He regards the deal as normal business, unaware of the chaos behind his thoughts. The situation intensifies as the opportunity to monetize the elixir collides with its unpredictable effects.

Barnaby wanders into the laboratory’s vicinity and plays with a group of children, pretending to be Indians. The moment showcases his regained youth and childlike enthusiasm, even as the adults scramble to regain control. The scene blends whimsy with the unintended consequences of the serum.

Edwina wakes to find a baby sleeping beside her, prompting confusion and fear. She mistakenly assumes Barnaby has overdosed, but the infant is actually the Fulton housekeeper’s charge. The mix-up escalates as she and Oxly realize they may be chasing a false threat.

Edwina and Oxly search for an antidote while trying to soothe the baby, hoping to reverse the effects before more people are affected. Edwina attempts to lull the infant to sleep, believing it could reset the formula’s power. The investigation spans the home as the clock ticks.

Back at the laboratory, more scientists and Oxly drink the water and regress to second childhood. Chaos erupts as the staff relives their youth and forgets their responsibilities. The panic highlights how deeply the elixir has unsettled normal life.

Barnaby crawls into the laboratory through a window and lies down to sleep beside the baby, embracing his childlike state. The act underscores how the elixir has softened his adult priorities. The moment signals a shift toward reconciliation rather than conquest.

Edwina discovers Barnaby in his childlike repose and realizes her mistake. The couple’s embarrassment gives way to renewed understanding and affection. The moment foreshadows a hopeful ending rather than a tragedy.

Back home, Barnaby accepts a renewed contract from Oxly, and his marriage with Edwina is revived. He odd ly quips that 'you're old only when you forget you're young,' crystallizing the film’s theme. The end suggests a lighthearted balance between youth and wisdom.