I am planning to take some client out in March on a Sunday night - but from what I remember, many restaurants in the downtown area are closed on Sunday night. Looking for fine dining, reliable service, good wine list - and most importantly, open for dinner sunday night. Looking for something unique to Chicago - Trotters, Tru, Frontera, and even Keefers is closed on Sundays. Prefer not to do the upscale chain steakhouses. Recommendations appreciated. Thanks.