My Dear Enemy

Jobless, single and in her early thirties, Hee Soo is miserable. Desperate, she sets out to find her ex-boyfriend, Byung Woon, who owes her $3,500. Rather inconveniently, it turns out that Byung Woon is also penniless, but he cheerfully claims he can get the money from a series of girlfriends. Suspicious, Hee Soo decides to trail Byung Woon as he makes the rounds of his varied lady chums, just in case he tries to deceive her. Thus the pair embark on a strange, nostalgic journey together.
(Source: IMDb)