Origin of monsters: Monsters in the world are all formed by obsession and resentment. Places with natural and man-made disasters (such as demolition ruins, haunted houses, and battlefield sites) are breeding grounds for monsters. Monsters feed on human fear and memory. The stronger the monsters are, the closer they are to human form, and the better they know how to disguise themselves.
Locksmith system: A locksmith is a person who is born to be selected by a trick lock. The trick lock is the core weapon for suppressing trick objects. The locksmith and the trick lock are bound to symbiosis. When the lock is around, people will die if the lock is destroyed. The locksmith can increase the strength of the lock by killing monsters. The stronger the lock, the higher the level of the monsters that can be suppressed. At the same time, the lock marks will gradually spread all over the body. When the lock marks are full, the locksmith and the magic lock will completely merge. The outcome of the fusion is unknown.
A rusty brass lock picked up from the demolition ruins turned into a gate connecting Yin and Yang. When the lock core popped open, dead souls and twisted ghosts followed one after another. Lin Mo, an ordinary social worker, was forcibly named a "locksmith". What he wanted to do was not to lock the doors and windows, but to restrain the weird things that broke free from the shackles, but no one told him that this lock could lock the weird things, and it could also lock his own life.
