A good idea, but it's a pity there's only one outcome. I tried exploring all the options, but it eventually leads you back to the inevitable main path. I would consider adding another ending, or a *secret* ending which takes an effort to reach (e.g. by clicking specific non-highlighted words related to your story).
You could also improve the game by adding music (something calm or increasing tension) or sound (e.g. a laugh when you click on "laugh", a phone dialling sound with "911", a gunshot).