Sunday Night and Monday Morning (1970)

So-hie and Cheol work together for the same travel agency, but decide they want to begin a relationship that does not involve their work. Their budding relationship gets off to a rocky start when Cheol breaks their first date because he must work late. He is unable to contact So-hee who is waiting for him at a bar. She falls into the company of some questionable characters and soon finds herself over her head in romantic entanglements