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 di

　　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

Inanearfuture,crimesandaccidentscanbepreventedbymakingjustonephonecalltothepast.However,thepeaceofthisutopianworldwillbedisruptedbyamethodicalkillerwh