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