Southeastern Michigan, 2022. A man grieves the loss of his parents due to the pandemic. He spends his days alone, crafting wooden sculptures by hand and thinking. Thinking about what to do with the rest of his life. He is ill, and prone to violent fantasies. He decides to act on them. His only friends are the mailman, who delivers his deadly packages, and Rose, the German beauty serving unruly customers among the cornfields of Iowa. The man chooses his targets carefully, thinking himself a mountain lion on the prowl, exacting revenge on those who have wronged him and those he cares about. It is Spring, and soon everything will be green, but not until the man’s work is finished.