The first slide shows a somewhat remote psychotherapist musing that the patient ‘may be hiding something’. The patient is wearing a large overcoat as if something may well be hidden concretely underneath or within.  

The therapist urges the patient, Mr Jones, to reveal what it is that’s hidden. ‘You can’t hide anything from me’

The patient is prodded by the therapist in a way that in ordinary practice would be quite unacceptable but for the sake of the cartoon makes the point that the patient is perhaps resistant to revealing what it is that they have hidden and requiring some pressure from the therapist to open up.  

Finally Mr Jones, the patient, opens his overcoat to reveal his mother upon whom he gazes with loving eyes with hearts popping out from his head towards her. The therapist muses ‘Ah yes, your mother’ as if the patient’s mother is what he had expected to be revealed all along.