Ambition of the game was to put you into the role of a blind person. It's the core of the game alongside the storytelling. You'll have to use echo localisation to advance.
It's a bit like in Daredevil's movie with Ben Affleck. In game, the mechanics works well and fits properly to the fantastic/horror theme.

It's a first person adventure in which we have to help Cassie to find the causes of her nightmares in an unknow mansion.
Although this fantastic/horror story may be a bit conventional, the way it goes is interesting and the quality of the voice acting (mainly Cassie) help greatly to follow it until the end.

There are different game modes to choose.
First about Cassie, we decide her to be talkative or silent (it means that Cassie will speak a minimum, if you want to focus on the ambiance rather than on the character).
Then we have to choose between three difficulty levels :
- a story mode (no danger to allow the player to focus on the story) ;
- second mode is a mix of story and a bit of danger : you return to the mansion with no lost in case of death ;
- in the last one the enemies will be more aggressive and you return to the game titles in case of death.
If you seek for some challenge, you must choose the hardest because the game is pretty easy and rather short.

It was a pleasant adventure ; a bit common by its story but with an interesting approach that I would recomand to those who search an unusal interact storytelling.