Senior naval engineer Murphy and his team went deep into salvaging the legendary sunken ship "Mary Celeste" and unexpectedly found a strange bronze compass. Those who touch it fall into "phase madness" and what they see is unreal. With his expertise in ship engineering, Murphy collaborated with physicist Haixing Lin and discovered that the compass was actually a dimensional anchor left by the Nazis. Facing the extradimensional erosion that is gradually out of control, they must calculate the "heartbeat" of the sunken ship and use sound wave resonance to counteract the tearing of space. Abandoning greed, Murphy advocated uniting the navies of various countries to sink the anchor of disaster in the Mariana Trench forever, composing a deep-sea tragedy to protect reality.