Even if you find a working link for "vegamovies the human centipede," the quality is often abysmal:

Interestingly, much of the film’s notoriety comes from what it suggests rather than what it explicitly shows. While the concept is inherently revolting, the first film in the trilogy relies heavily on clinical atmosphere and the psychological terror of the victims. Dieter Laser’s performance as Dr. Heiter provides a chilling, detached villainy that anchors the film in a reality that feels uncomfortably cold and sterile. Cultural Legacy and Accessibility

The "medical" explanations provided by Dr. Heiter added a layer of realism that made the concept even more unsettling.

: The film ends on a grim note; after a standoff with police, the doctor is killed, leaving the middle and rear "segments" of the centipede trapped in a horrific state of isolation. Where to Watch Legally

Sarah realized that she wasn't alone in her reaction, and that the film had tapped into some deep, primal fears. She vowed to be more mindful of the content she consumed on Vegamovies, but couldn't help but feel a morbid curiosity about the film.