Charlie, a reclusive and morbidly obese English teacher, lives alone in a small apartment, conducting online writing courses with his webcam perpetually switched off. As he struggles with severe health problems and emotional turmoil, Charlie remains hopeful for a chance at redemption through reconnecting with his estranged teenage daughter, Ellie. His friend and caregiver, Liz, frequently visits to assist him and express concern about his deteriorating health. Despite their close relationship, Liz can't persuade Charlie to seek medical help. Charlie clings to his troubled past, which is marked by the departure of his partner Alan, leading to his current state of isolation and despair.

In his quiet and cluttered space, Charlie yearns to understand and communicate with Ellie. Her visits are marked by anger and resentment towards Charlie, revealing deep wounds from their fractured relationship. As tensions rise, Charlie pushes for sincerity from those around him, including Ellie, who is initially unwilling to forgive him. The narrative explores themes of redemption, love, and forgiveness as Ellie struggles with her own issues. Alongside Ellie’s presence is Thomas, a young missionary who persistently tries to share the beliefs of his religious group with Charlie. As the days pass, each character battles their personal conflicts, drawing them into moral confrontations that bring underlying truths to light. This microscopic look into Charlie's world raises questions about the nature of human connection and compassion amidst personal adversity.