Preheat oven to 350 degrees.
Mix sugar, flour, eggs, sour cream and vanilla together until completely smooth. Set aside.
Mix berries with 1/4 cup sugar. Set aside.
Combine flour, brown sugar, cinnamon, apple pie spice, sugar and melted butter in a small bowl until crumbly. Set aside.
Unroll pie crust and place it in a pie pan sprayed with nonstick spray. Crimp the edges.
Add the berries to the bottom of your pie.
Pour the custard over the berries.
Sprinkle the crumb mixture over the custard.
Bake for about 1 hour and 20 minutes, or until your custard is set.
Allow to cool completely before eating.