Free Cinema Aeternum

In the convenience store at the gas station, murders happen from time to time. Is this a random event? Still a mysterious coincidence? After another murder, the brilliant mathematician finally revealed the secret of reversing his fate, even in the form of a series of numbers. He followed mysterious digital signals to find out the truth in an attempt to save the next victim, the life of a 10-year-old boy, but with the date of the warning letter close, he still has a chance to save a life.