Will co-star as couple on the run from assassins

Someone's trying to kill Katherine Heigl, and it's not Denny's ghost.

Heigl has been cast as a woman who meets the man of her dreams in "Five Killers," according to Variety. Sounds sweet, right? Did we mention Ashton Kutcher plays the man in question? Or that the pair's neighbors may be assassins out to kill them both? No, we don't know why, though "The Butterfly Effect" may be high on the list.

Heigl, 30, currently stars on "Grey's Anatomy," though rumors of her impending exit persist. Kutcher, 31, is busy; as of yesterday, he was in final negotiations to star in the body-swapping football comedy "Traded."