Arthur Pendelton, an ambitious, cynical corporate lobbyist whose entire existence revolves around high-stakes deals and luxury, finds his meticulously curated world imploding when his estranged, free-spirited ex-girlfriend vanishes, leaving behind a bewildered six-month-old infant she claims is his. Initially motivated by self-preservation and a desire to protect his impending partnership at a ruthless firm, Arthur attempts to offload the child to state services. However, a bureaucratic nightmare forces him to keep the baby, setting off a chaotic, adult-themed war of attrition between a seasoned dealmaker and an unrelenting, screaming infant.As the days blur into sleep-deprived torture, Arthur’s glossy facade begins to crack. His obsessive motivation shifts from merely surviving the week to proving he can conquer fatherhood just as ruthlessly as the boardroom. He treats diaper changes like hostile takeovers and formulates military-grade feeding schedules, alienating his superficial social circle and severely jeopardizing his career. Meanwhile, the baby—affectionately nicknamed "The Leverage"—seems to possess an uncanny, almost supernatural intelligence, deliberately sabotaging Arthur’s critical Zoom meetings, ruining designer suits with strategic projectile vomit, and orchestrating deeply embarrassing social scandals.The
psychological warfare reaches a fever pitch when Arthur’s predatory boss, Charles, uses Arthur’s domestic chaos as a pretext to strip him of his partnership. Pushed to the absolute brink, experiencing crushing exhaustion and genuine
emotional breakdown, Arthur abandons his corporate ambitions. In a raw, transformative moment, he cradles the feverish child through a harrowing night, realizing his desperate drive for success was merely a mask for his own profound loneliness.Arthur resigns from the firm in a blaze of glory, trading his tailored suits for sweatpants to launch a grassroots consultancy that allows him to work from home. Just as Arthur finds a precarious, exhausting peace, a cryptic text message from his ex arrives, revealing that the baby is actually not biologically his. Devastated yet utterly transformed, Arthur looks down at the sleeping child who has completely rewired his soul, realizing biology is irrelevant. The series culminates with Arthur locking his front door against the corporate world, fully embracing his new identity as a devoted, caffeine-addicted father ready for whatever chaotic battle the toddler throws at him next.