OBSESSION: The Vanishing Witness — 9 days on the clock. 5 witnesses gone without a trace. Bring them back alive before the truth sinks into the Wujiang River.

Three weeks ago, a man fell from Wujiang Bridge. The police ruled it suicide. Case closed. Three weeks later, five strangers vanish one after another. Their only common thread: that same night, each of them crossed that bridge. It wasn't suicide.

You are Lu Yan, 28, a detective with the Wujiang Criminal Investigation Brigade. They call you "Mad Dog"—once you bite into a case, you never let go. Superiors are pushing back. Witnesses have gone silent. An unseen resistance weighs heavily on every case file. You have 9 days before the survival window closes. No backup. You're doing this on your own.

The Investigation: Subtle Tells on Camera, Red Strings on the Board

The Vanishing Witness doesn't offer a passive ride of cutscenes and dialogue trees. You are here to do real detective work:

■ Examine Raw Footage: Video Isn't a Cutscene—It's Evidence CCTV pulls, dashcam recordings, tense interrogations, and crime scene reconstructions—every long-form video sits on your desk as raw evidence. Nothing is highlighted for you. Like a real investigator, you'll scrub back and forth through the timeline, catching flickering micro-expressions, anomalous background noises, and subtle alibi contradictions that everyone else missed.

■ Piece Together the Truth: An Unassisted Detective Board No auto-connecting lines. No hand-holding. As you dig deeper, hundreds of fragmented physical clues, testimonies, and doubts will pile up on your desk. You must pin them to the board yourself—sorting, cross-referencing, and drawing the red strings to build an airtight chain of logic. Once a clue lands on the board, it stays. If you hit a dead end in the fog, rely on your accumulated "Detective Intuition" to spark a breakthrough.

The camera shows you the surface; the board forces you to deduce the truth. When the final red thread snaps into place, you'll feel the pure thrill of cracking a cold case.

On the Case

Cross-Reference Every Lead: Pit suspicious frames from surveillance tapes against crime scene forensics, private phone logs, and your own board deductions. A single clue proves nothing—only cross-verification tears through a fabricated alibi. Human Lives, Not Case Numbers: The five missing people aren't abstract puzzles. Each has a hidden family life, a career trajectory, and a final social media post frozen three weeks ago. You're racing against the clock for five breathing human beings. Every Method Carries a Price: How do you reply to Shen Ke's probing texts? Do you clash head-on with Captain Fang or play along? Do you tap into gray-market informants like "Ah Gui"? Every compromise or defiance leaves a mark that echoes throughout your investigation. An Uninterrupted Crime Drama: A complete 6–8 hour noir detective thriller (depending on your deduction speed). One-time purchase for the full case—no microtransactions, no immersion-breaking distractions.

The First Case of the "OBSESSION" Anthology

Wujiang is a coastal city shrouded in autumn fog. Beneath the neon glow of its skyscrapers lies an unspoken underbelly. Lu Yan will take it one case at a time. And the cold case that has haunted him for years is hiding right behind every new file. The Vanishing Witness is the first thread in the Wujiang mist.

For the Investigators—This Case Is Yours If You:

Crave hardboiled, whodunit deduction where you dissect fragmented footage, case files, and broken alibis; Relish staring at a wall of clues for five quiet minutes until that sudden "eureka" moment connects everything—rather than following quest markers; Love gritty crime noir and don't mind immersing yourself in dense transcripts and case dossiers.