A few months after Sleep No More ended its landmark run, Punchdrunk returns to New York with Viola’s Room, a smaller but even more all-consuming immersion that isolates, envelops and thrills. If that walkthrough theatrical experience emphasized the capabilities of physical storytelling, encouraging side quests and bewildered ogling at performers and fellow audience members, this one is all about the pensive powers of solitude and the inner mindscapes it can create.