Unique Christmas card tradition keeps 2 women connected for 41 years

Karen Petillo and Laurie Matthews have been sending the same Christmas card back and forth for the last 41 years.

The unique holiday tradition started when Petillo received a Christmas card in the mail 41 years ago. The card had no signature and no return address, Petillo told Fox News. 

She said she decided to keep the card because of the mystery.