YMMV / Speak No Evil

• Accidental Aesop: A pushy and entitled guest would have never suffered the fate of the victims in the film, leading some viewers to joke that being a "Karen" would have saved the protagonists, as they would have started a fight and left on the very first day once their needs weren't being met. Even if it wasn't intended, one could say that the takeaway is, it's healthy to set boundaries, even if it comes across as "rude".
  • Fridge Brilliance: That may be the point of the story, a cautionary tale about keeping quiet instead of speaking up. The victims danced around the things that bothered them until it was too late. Hence, they spoke no evil.
• Complete Monster: Patrick and Karin are a pair of seemingly friendly lovers, who are actually monstrous sadists. The couple are serial killers who lure milquetoast families into isolation and subject them to psychological torments for days. Patrick and Karin then murder the parents, cut out the children's tongues, and abuse the children into pretending to be their child, helping lure further families to their doom. Once they find a new child to replace the current, they murder the kid that has outlived its usefulness. Patrick and Karin subject couple Bjørn and Louise to this routine, forcing them to watch as their daughter's tongue is cut off before stoning the couple to death. With hundreds of trophies signifying a staggering body count, Patrick and Karin continue their spree, with no motive for their crimes beyond cruelty.
• Genius Bonus: The Dane fairytale The Little Mermaid was referenced offhandedly when Bjørn and Louise gives the Dutch couple souvenirs after visiting them the first time. Said fairytale was about a mermaid who loses her voice when the Sea Witch cuts out her tongue as payment, and take a guess as to what are the fates of Agnes, Abel, and the dozens of abducted children.
• Rewatch Bonus: All of Patrick and Karin's actions make more sense on a second watch, when the viewer knows they're actively challenging and tormenting the Danish couple instead of just acting strangely.
• Too Bleak, Stopped Caring: The biggest criticism of the film is that Bjørn and Louise are too passive for even the most polite viewers to tolerate their increasingly meek behavior and downright idiotic lack of self-preservation skills. Granted, it's a plot point that Patrick and Karin intentionally select weak victims but most agree that it's hardly a power fantasy to recognize that the average person would have fought back long before the events of the climax.
• Unintentionally Sympathetic: Louise was seemingly written with the intention of making her just as much of a doormat as Bjørn, but instead, she comes across as much less willing to put up with Patrick and Karin's increasingly questionable behaviors. She's always the first to speak up against them, point out that something is seriously off, and is much more assertive and articulate in her grievances than Bjørn. If anything, it seems like Bjørn is keeping her weak and complacent. That said, she doesn't object when Bjørn goes back to look for Agnes' bunny and lets her wander into the couple's room despite her being a better judge of character than her husband.