Rain tapped on the window. Detective Jane stared at files. A clock ticked, echoing loudly. The phone rang, startling her. "Detective, there's been a murder." She grabbed her coat quickly. The night was eerily silent. Streetlights flickered, casting long shadows. She arrived at the scene. Yellow tape marked the perimeter. Officers whispered in hushed tones. A body lay, lifeless, cold. Blood pooled around the victim. Jane examined the surroundings carefully. Clues were sparse, tension high. She noticed a strange symbol. It was drawn in blood. Her mind raced with possibilities. "Who could have done this?" The mystery had just begun.