What's the Worst That Could Happen?

Caught red-handed trying to rob a mansion, Kevin Caffery (Lawrence) leaves empty-handed when the house's owner, ruthless billionaire Max Fairbanks (DeVito), spies Kevin's "lucky" ring and claims it as his own! Out of jail and out of his mind with rage, Kevin will do anything to get the ring back. But Max considers it his most cleverly won possession and will do anything to keep it! With battle lines drawn and no risk too great, these two set out to ruin each other's lives and both succeed admirably! (official distributor synopsis)