Set against the shadowy backdrop of the upper echelons of South Korean society, *The Trunk* is a gripping
psychological thriller and unconventional romance centered on NM, a secretive matchmaking agency that arranges fixed-term, high-end contract marriages. Inji works as a senior fixer at NM, viewing her temporary unions not as romantic endeavors, but as a cold, transactional career. Burdened by profound loneliness and the lingering trauma of a mysterious past accident, she routinely enters into these legally binding setups. Meanwhile, Jeongwon, a hyper-anxious, emotionally fractured music producer, is drowning in the suffocating grief of his past. Still haunted by his unpredictable ex-wife, Jiyeon—who bizarrely orchestrated Jeongwon’s enrollment in NM—he finds his daily existence crumbling under the weight of insomnia and paranoia.When Inji and Jeongwon are paired as husband and wife for a one-year contract, their initial dynamic is defined by icy distance and mutual warfulness. Both live in a state of emotional detachment, sharing a sleek, modern apartment that feels more like a prison than a home. However, the fragile peace of their arrangement is violently shattered when a battered, mysterious trunk washes ashore near a lakeside, containing deeply incriminating evidence and human remains tied to NM's illicit underworld.This gruesome discovery drags Inji and Jeongwon out of their solitary bubbles and thrusts them into a labyrinth of blackmail, corporate espionage, and
psychological terror. As unseen adversaries begin closing in, threatening their lives, the facade of their fake marriage begins to crack. Forced to rely on one another for survival, they navigate dangerous nocturnal stakeouts, evade relentless pursuers, and confront the chilling secrets of the matchmaking agency.Amidst the escalating suspense, the transactional nature of their relationship gives way to a profound, desperate intimacy. Inji discovers a fierce protective instinct for Jeongwon, while Jeongwon finds himself anchoring Inji’s fractured psyche. They realize that Jiyeon’s orchestration of their marriage was not random, but part of a calculated web involving the trunk’s dark origins. As the finale approaches, the couple must outmaneuver powerful figures who will stop at nothing to bury the truth. In the fiery climax, Inji and Jeongwon dismantle the immediate threat, choosing to redefine their bond on their own terms. They step out of the shadows, no longer bound by a corporate contract, but tethered by a hard-won, genuine love forged in the crucible of survival.