Detective Grimoire: The Beginning is a sneak peak for greater detective adventure game currently in development. In this game, it's your job to hunt for clues, interrogate the suspects, solve puzzles along the way and uncover the secret of some suspicious looking swamp. The game is played entirely by mouse, just click on things to interact with them.
This game may be a sneak peak but it is enough to get you warmed up or even get you stuck. So I figured I could be of help by looking some Detective Grimoire The Beginning walkthrough and this is what I found to be helpful.