What does the phrase "mess on [someone's] hands" mean?

Rebecca

To "have a mess on X's hands" means that X person has a problem or issue. In this video, "the Renkins could have a mess on their hands" can be understood as meaning that the Renkins family might have a potential problem. Ex: You have quite the mess on your hands. How are you going to fix it? Ex: He has a mess on his hands.