Here is the full list of all 11 Mediterranea Inferno achievements.
Witness an after-dinner nightmare
Shoot a neorealist scene during the Mirage on the film set
Refuse to buy a Mirage
Check all cabina during the mirage at the beach
Survive the first night of the vacation
See the puppet theather during the first Mirage
Win the duel unharmed during the Mirage in the rain
Sell the Italian dream during the Mirage at the cemetery
Collect enough holy cards for one final Mirage
Ascend to Heaven
Finish the game once