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Ultimately, "Knock Knock" serves as a critique of social media and its impact on human relationships. As Teddy and Claire’s desperation for views and validation leads them toward their doom, the film raises questions about the morality of contemporary behaviors in the context of public image and fame. Their tragic fate illustrates that the desire for online popularity can overshadow basic human instincts, highlighting the often invisible dangers lurking in the shadows of technology.
Conclusion: Fear in the Age of Connectivity