Five groups of mothers and sons will be tested on their relationship.

Hortensia is a mature officer of the INEM office. She has been abandoned by her husband so she doesn't believe in love anymore. One day Eduardo Fernandez goes to the employment office because after overcoming a deep depression, he has decided that his life has to get better.

Bruce Taylor works as a doctor at a mental hospital with a dark mysterious history. When the nightmares of a patient start to affect Bruce's sleep, he thinks he might be going crazy himself. Worse still, the discovery of an old human skull threatens everyone with disease. Bruce must call upon his father Anthony for help to figure out the truth behind the skull and stop the spread of the disease.