Chess Opening Theory/1. e4/1...e5/2. Nf3/2...d6/3. d4/3...Nd7/4. Bc4/4...Ngf6/5. dxe5/5...Nxe5/6. Nxe5/6...dxe5/7. Bxf7

7.Bxf7+
This move appears to win Black's queen, but in reality wins a pawn. Ke7 doesn't make any sense, as who wants an exposed king (not to mention the lost pawn) with the queens on the board? Therefore, the best move is 7...Kxf7. The only good move after 7...Kxf7 is 8.Qxd8.