Mix the cream cheese and sugar until smooth
Add the eggs one at a time, mixing well after each addition
Add the heavy cream and vanilla extract, mixing evenly
Crush the biscuits finely and mix with melted butter, then press into the bottom of the pan
Pour the cheese batter into the pan
Bake at 170°C (338°F) for 40 minutes in a preheated oven
Let it cool completely, then refrigerate