Strange Darkness

A series of seemingly unrelated murders in London all have one striking similarity: Devoted husbands and lovers are killing the women that they cherish. Puzzled by the temporary change of law abiding citizens into ruthless killers who destroy what they value most, Scotland Yard calls UNIT to investigate. The Doctor and Brigadier form an uneasy alliance with the police. Lulled by the assumption that only human males could be affected by whatever is going on, the Doctor ventures recklessly into the source of the mania, only to find that timelords are not immune to this strange darkness of heart and mind. Set after The Daemons. Five Episodes.