老莫做了CT后得知自己脑部有肿瘤,儿女常年不在身边陪伴,他希望在活着 的时候完成几个最后的心愿。。In a near future, crimes and accidents can be prevented by making just one phone call to the past. However, the peace of this utopian world will be disrupted by a methodical killer who seems to have discovered the only flaw in this system.。