Perfect Number (film)

Perfect Number is a 2012 South Korean mystery thriller film directed by Pang Eun-jin, based on the novel The Devotion of Suspect X by Keigo Higashino. The film revolves around a brilliant mathematics professor, Suk-go, who meticulously covers up a murder committed by his reclusive neighbor, Hwa-sun, for whom he harbors unspoken affection.

The narrative focuses on the complex interplay between Suk-go's strategic planning and the relentless investigation led by Jo Min-beom, a police detective who also happens to be Suk-go's former classmate. As the investigation progresses, Suk-go's carefully constructed alibi begins to unravel, revealing the depths of his sacrifice and devotion. The film explores themes of unrequited love, redemption, and the moral dilemmas faced when protecting someone you care about. The core tension arises from the intellectual battle between the two men, each possessing exceptional analytical skills, creating a suspenseful and emotionally charged storyline. The film garnered recognition for its compelling performances and intricate plot twists.