Welcome to the Rileys (2010)

Something's wrong at the Rileys. Married nearly 30 years, Doug and Lois rarely talk. She doesn't leave their Indianapolis home, and she's ordered a gravestone with their names and birth years on it. He has a long-time Thursday night mistress whom he invites to go with him to a plumbing supply conference in New Orleans. Once there, Doug calls Lois to say he's staying for a while. What's he leaving behind and what's he looking for in New Orleans? And Lois, can she break out?