The Thief Who Came to Dinner

O'Neal plays a computer expert named Webster, who alleviates on-the-job doldrums by moonlighting as a successful jewel thief. Webster invites himself to upscale soirees, where he cases out the location and proceeds with his heists. During his adventures, he meets up with Laura, a high society woman who teams up with Webster to assist on his heists... (Answers.com)