Jung Se-jung operates an unassuming neighborhood laundromat with an otherworldly secret: during midnight hours, she washes the emotional stains and earthly regrets from departing phantoms to help them pass peacefully into the afterlife. Her routine supernatural trade derails when Ma Do-joon, a sharp-tongued bachelor spirit carrying stubborn grudges, materializes in front of her spin cycle. Despite running through every enchanted rinse cycle available, his spectral form remains stubbornly tethered to the physical world.
Determined to uncover the mysterious knot preventing his ascension, Se-jung agrees to investigate Do-joon’s forgotten human demise. As the odd pair wander city streets hunting down lost memories and unresolved grievances, irritation softens into gentle intimacy. Yet helping the charming spirit find eternal tranquility means risking his permanent disappearance, leaving Se-jung to face the heartbreak of falling for a man who cannot stay.
