Believing herself to be the most miserable person, ‘Joy’ learns about the existence of the "Happiness Destroyers," a group that destroys others' happiness. She uses all her savings to hire them and selects three people on social media whose happiness she wants to ruin. The happiness elements that the Happiness Destroyers disrupt are not grand, but Joy feels a sense of happiness watching these people quickly become unhappy. This stylishly satirical film critiques the reality of flaunting happiness and wishing for others' misfortune.