Guy Lambert (Elvis Presley) is a rock star touring Europe and chasing girls. In London, he brings Jill Conway back to his hotel room but it turns out badly. Jill's uncle Gerald Waverly is trying to keep her and her inheritance under his control. Guy is shocked to learn that she's a love-struck underage girl but she continues to pursue him. They get stuck in a jewel smuggling scheme when two criminals hide their jewels in her luggage. Someone is also trying to kill them.
Elvis always has his natural charms. I actually like his womanizing troubles. They humanizes him. I would change Jill age by advancing it four days. It would be funnier if she considers him her birthday present and less awkward if there isn't the smell of illegality. He can still try to keep her at arm's length due to her clinginess. Otherwise, I really like her character and she has fun with Elvis. I am surprised that Annette Day did not continue to act. This is her one and only notable appearance. The three idiot cops do go too far but I do understand having the Insp. Clouseau wannabes for comedic purposes. The movie struggles to keep going after someone dies. The death should be the climax instead of being in the middle. As for Elvis, he sings, he charms, and he Karate-chops. It's light Elvis fun with murder and mayhem.