Kotoko (2011)

Struggling with double vision and terrifying hallucinations, a single mother finds her ability to care for her infant compromised. As her mental health deteriorates, authorities decide she's unfit to raise her child, leading to a heartbreaking separation. The only moments of peace come when she sings, a talent that catches the attention of a celebrated novelist on a bus. Their ensuing relationship is fraught with emotional intensity, as both grapple with their own demons while navigating the complexities of connection amidst chaos.