Investors need to be convinced that you will be able to take the money they invest and use that money to make more money. Essentially it boils down to 3 things:
First, investors want to know who you are so that they can assess whether or not you can execute.
Next, they want some details about how you intend to spend their money and what financial results you hope to achieve.
Finally, investors want to know what is in it for them. Every investor is seeking a return on their investment.