Mid-century American realist painter Edward Hopper is celebrated for Nighthawks, his 1947 work in which customers in an all-night diner are viewed through a plate glass window lit by a neon light, and his 1927 Automat, where a girl in a cloche and fur-trimmed coat gazes pensively into a coffee cup in a lonely cafeteria. Hopper returned to that enigmatic woman again and again. He painted her throughout his career. In AUTOMAT, Denver Art Museum Conservator of Paintings Lily Sparks pursues a killer who targets actresses who bring Hopper’s works to life. Lily’s perfect eye tells her the man in Hopper’s paintings also holds clues to the killer’s identity. And just as the famous artist kept painting the same iconic woman, the killer must keep killing her. Five top Hopper paintings convince Lily she’s on the right track. Hopper started out illustrating trade magazine covers. In 1906, on his first trip to Paris, he painted the watercolor Couple near Poplars. In the style of the day, a Gibson girl with upswept hair and a pinafore over her corseted waist stands with a beanstalk of a man with a pencil moustache and a beret. He’s trying to draw her closer, but…