Where Were You When the Lights Went Out? is a 1968 American comedy film with Doris Day, directed by Hy Averback. Although it is set in New York City during the infamous Northeast blackout of 1965, in which 25 million people scattered throughout seven states in the Northeastern United States lost electricity for several hours, the screenplay by Everett Freeman and Karl Tunberg is based on the earlier 1956 French play lang by .

Plot

November 9, 1965: Margaret Garrison (Doris Day) is a stage actress who has spent her career starring in virginal roles, although she would relish the opportunity to play someone more savory, such as an Italian prostitute, at least once before she retires. When a blackout shutters her current Broadway play for the night, she returns home unexpectedly and discovers her architect husband Peter (Patrick O'Neal) being overly attentive to attractive reporter Roberta Lane (Lola Albright). Infuriated, she heads to the couple's weekend house in Connecticut and takes a concoction to fall asleep.