Joan Prats (Barbara Goenaga) suffers agnosia, a neuropsychology strange disease that affects your perception. Although his eyes and ears are perfect conditions, your mind does not interpret well the stimuli it receives through them. Only aware of a secret kept by his father, the enigmatic young man will be the victim of a sinister plot hatched to extract this valuable information using their sensory confusion. During the plot, two people close to it will play a crucial role: Carlos (Eduardo Noriega), Joana fiance and his father's right hand, and Vincent (Félix Gómez), an impulsive young servant of the mansion Prats.