Wait Until Dark (1967)
Intertwining the natural fear of sightlessness and the reliable plot device of chance, Wait Until Dark cranks up the terror by pitting a newly blinded woman against a twisted drug dealer. Audrey Hepburn radiates just the right blend of frustration, vulnerability, and shrewdness as Suzy Hendrix, whose husband, Sam (Efram Zimbalist Jr.), unknowingly brings a doll stuffed with heroin into their apartment. Left alone for the weekend by tough-love-advocate Sam, Susie remains oblivious to a murder victim literally under her nose, yet grows increasingly suspicious after a series of visits from odd strangers led by the hyperactive but ruthlessly determined Alan Arkin (taking on three roles with zealous animation). Using only her wits and the friendship of a little girl upstairs, Susie slowly realizes her predicament, then casts about desperately for a way to fight back. A tad stagy (it's based on the Frederick Knott play) and very '60s in look and feel, Wait Until Dark nevertheless builds dramatically, straining nerves until an all-out grand finale guaranteed to make you jump out of your seat.