I went into this not knowing anything about the movie whatsoever...
"Trinket Box" may not break a crazy amount of new ground in the horror genre, but what it does is stand out very well as a decent indie film with superbly well developed easy to understand and follow characters, an engaging story line, and well cast characters.
The cinematography and set design are A+ and provide some really scary atmosphere which is quite impressive for a low-budget film, but this isn't the kind of horror film that relies heavily on visual style really at all. There are many shots in the dark, though, that are hard to see at times, so the filmmakers let you use the power of your amazing and powerful imagination. I LOVE that!