share time: 2025-02-10 12:04:35
On a blizzard night, forensic expert Su Xue finds a mysterious blue snowflake badge at a serial murder scene - identical to the evidence from her mother's unsolved case 20 years ago. Tracking clues to a mountain lodge, she meets painter Lu Yuan, whose name eerily matches entries in her mother's diary. When a second body appears with all evidence pointing to Lu, Su discovers a third badge in a locked room... Who's using the snow as a murder weapon? As blood stains the white expanse, the truth cuts deeper than the winter wind.
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