
Plot
A mysterious virus spreads out. Anyone infected feels the emotion of love, and the emotion amplifies until it kills the person in love. The pessimist Taek-seon, who likes nothing in life, is infected, and the researcher Gyun reaches her out to test her the medicine that he's developing. Soon Gyun finds out Taek-seon has special antibody, but Taek-seon slowly feels love to Gyun. Is this a real love or just a virus?
Trailer
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Cast

Bae Doona
Ok Taek-seon

Kim Yun-seok
Lee Gyun

Chang Ki-ha
Kim Yeon-woo

Son Suk-ku
Nam Soo-pil

Moon Sung-keun
Professor Seong

Kim Hee-won
Director of Research Institute

Oh Hyun-kyung
Young-hee

Min Jin-woong
Jeong-hun

Yeom Hye-ran
Ms. Yeom

Kim Ye-won
Ji-seon

Park Hee-von
Yi-ju

Car, the garden
Police