Ah, the Psychohorizon, finally. An infinite corridor of time, space and the mind. Lots of pseudo psychoanalysis like Transference Sickness. Transference itself is a phenomenon found in psychoanalysis but has very little to do with void virgins.
As correctly observed by Rob Davis in the comments section for this plate, this is a Poirot moment. Perhaps a game of motives and alibis is about to begin? We shall see.