Opening Night starts out seeming like your average puzzle game (albeit with excellent prose). Your goal is to give a rose to Miranda Lily, star of the stage - your problem is getting past that obnoxious doorman. A couple simple puzzles take you past this problem, and then the game really begins to shine.
There are more puzzles, but the focus of the game really is on the story, as the author says in the "about" section.
I found the interweaving of memory and present startling and surreal, and the pacing is excellent. I gradually began to put the pieces together, painting a haunting picture, and the final revalation brings everything together in a sad and satisfying way.
There are no in-game hints, but they aren't really necessary. While I often look at hints at least once during a game, I never needed to during Opening Night.
The game is rather linear, but this never presented a problem, and perhaps actually enhanced the story to a degree (think Photopia). Overall an excellent, very satisfying, very polished work.