Winter Melody (2003)

This film explores loneliness amidst the city's energy. Odnood unexpectedly encounters Amgalan, who is struggling to cope after his girlfriend left, clinging to the hope of her return. He gains access to Amgalan's home and begins observing him. Amgalan believes his girlfriend occasionally visits to tidy up, and he maintains faith in her eventual return. But the story takes an unexpected turn, revealing a surprising truth.