Detectives

S1, E4: Alberto and Max's new case is the most sinister they have faced to date. Every night, a mysterious figure tries to open the tombstone of a baby, who died as soon as he was born. Who could do something like that? The answer is the one that Alberto least expects, it is the boy's mother, who assures that this body is not that of her son, but that it was stolen after the birth and is still alive.