Mr Wotsup and other top detectives have been summoned to a meeting at headquarters in the centre of Peking . A series of curious happenings has been plaguing the city and such is the Chief's concern at the 50 unsolved mysteries that a concentrated effort by his best detectives seems the only means of catching the culprits. Preliminary investigations have narrowed the search, and suspicion now rests only on 12 shady characters but the evidence is sketchy. No crime can be pinned on any one of them.
Unravel the mystery and discover the culprit. Each game solving one mystery lasts about 45 minutes.