The old lady received a scam call. The caller falsely claimed to be her son, but her son died of illness two years ago.

But the liar's voice was so similar to his son's that she couldn't bear to hang up.

The liar's mouth went dry as he realized that he couldn't deceive her at all.

Only then did the old lady tell the truth and asked the other party: "Tell me one last thing!"

After thinking for a moment, the scammer said: "Mom, take care! Pay attention to the big pie. It's time to call back."

Then hung up the phone.