Inspired by a true story, Tight Lettuce is a dark comedy about Joel's (Dakota Daulby) steadfast love for his father, Bodo (Emmanuel Bilodeau), who is battling an addiction to heroin and fentanyl. Despite Bodo's denial and the chaos his addiction brings, Joel documents his father's struggle, hoping to inspire change. As their bond deepens, Joel can choose to confront his father or cherish the time they have left together.