Fear in The Night (1972) – Jimmy Sangster.

I remain a huge admirer of this splendidly atmospheric Hammer thriller, positively roiling with malign Machiavellian discords, and fascinatingly replete with hysterical hot-flushes of macabre mania, arguably comparable to the very best sinister scheming of Hitchcock and Clouzot, H.G, not the other fella, natch! Like Symptoms, much of the villainy takes place during the day, which suggests that the title might be playfully ironic! As ever, Cushing is positively immaculate, and his notable fellow artistes deliver no less exemplary performances, with a dishily deviant Dame Collins being on exquisitely horrid form!