Bring the cream cheese, eggs, and sour cream to room temperature at least 1 hour before you begin, to prevent lumps in the batter.
Prepare the crust: Mix graham cracker crumbs, sugar, and melted butter. Press firmly into the bottom of a 9-inch springform pan. Chill while making the filling.
Make the filling: Beat cream cheese until smooth. Add sugar and flour. Mix in eggs one at a time, followed by sour cream, vanilla, and lemon juice.
Bake: Pour filling into crust. Place the pan in a water bath to avoid cracks. Bake at 160°C (325°F) for 60 minutes until edges are set and center is slightly jiggly.
Cool: Turn off the oven, crack the door, and let the cheesecake rest for 1 hour. Refrigerate at least 4 hours or overnight.
Serve: Slice with a hot knife for clean edges, and enjoy plain or topped with fruit.