The Thief Who Came to Dinner (1973)

Synopsis
Bud Yorkin directed this middling comedy, written by Walter Hill from a novel by Terrence Lore Smith. Ryan 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 (Jacqueline Bisset), a high society woman who teams up with Webster to assist on his heists. Gradually the two fall in love. However, it's not all easy going, since an insurance detective (Warren Oates) suspects that Webster is the jewel thief but he has no proof ... yet. ~ Paul Brenner, All Movie Guide