Developing Story Ideas

I've been trying to get an initial overview sorted as early as possible, so that I can keep a clear vision of what I want to create. I have decided upon a plot synopsis.

Doug is a cow. He lives in a field located directly behind a little burger joint in the backwoods of rural America, who pride themselves on sourcing fresh beef mere yards away from the counter. When Doug's number is up, and the sadistic burger flipper comes for him, Doug fights back, killing the owner. In a panicked effort to get rid of the body, Doug disguises himself as the owner, and puts the still warm corpse through the meat grinder. However, before he can escape, he is roped into cooking up some human burgers for some hungry customers. The burgers are a hit, and by the end of the day he is all sold out of his human burgers.

When closing up for the night, Doug ponders his next move. Will people find out his secret? Will people come back for more of his special burgers? How will he get more meat if they do?Whilst sweeping, a lone trucker knocks on the window asking for a bite to eat, and Doug is presented with an opportunity. "In for a penny...".

I am keeping it brief for the time being, as I want to focus on this sequence. I think it has a lot of opportunity for tension, suspense, laughs and some key moments where the player can direct the action. Rather than enhance the scope, I would rather maintain a narrow, focused vision at least for the time being.