Game Designer / Game Writer VR Escape Room

I am seeking a game designer to create a specification for an Escape Room VR game. The game will use the Unity game and physically based VR system like Havok VR. The applicant must be able to handle the following tasks:

– a story and an overall concept of the game
– detailed description of environment
– an algorithm of actions and descriptions of all the puzzles or other game elements
– all the in-game texts and dialogue
– specifications for the artists, voice-actors, animators and other specialists working on the game

Seeking innovation in physical based VR puzzle design. The game will consist 1-2 rooms and last 60-90 minutes.
Psychological Thriller Murder Mystery is one theme but open to other ideas.
The Room VR: A Dark Matter is the type of game structure I am striving for.