Of all the mediums and psychics and healers that American television has given us, none approximates the quartet of creeps in the new Greek movie “Alps.” First of all, they’re in no way gifted. Second, I’m reasonably certain they don’t know what they’re doing. I’m not sure the people who’ve agreed to let them impersonate their dead relatives in this lightless comedy know what they’re doing, either. Grief therapy should probably be left to professionals, but maybe what these four provide — someone to hold, someone to make love to in the basement of a lamp store — is cost efficient in a time of economic austerity. They’re getting what they pay for.