Red Dwarf Season 1 Episode 5

Confidence and Paranoia

A mutated form of pneumonia turns Lister's dreams into reality, raining herring upon the crew and summoning the sixteenth century Mayor of Warsaw who promptly explodes. The fever subsides, but not before inviting two unlikely guests to Red Dwarf: personifications of Lister's conflicted personality. Much to the chagrin of the snivelling Paranoia, the larger-than-life Confidence brings Lister closer than ever to finding Kochanski's hidden hologram disc - but at what cost?