After a heated argument with her husband, Lucy Church, Muriel Pavlow, storms out and goes to the local cinema for a distraction. Inside, two criminals, Wade, Donald Sinden, and Barney, Nigel Stock, are in the midst of robbing the cinema’s safe and murder the cinema manager as they press their heist forward. When they pursue her, Lucy is struck by a bus and rushed to the hospital, a twist of fate that keeps her in the town long enough for the danger to linger.
With the hospital now the stage for the drama, the robbers decide to stay nearby to monitor what happens to her, while Lucy’s husband, Jay Church, Michael Craig, grows more worried and combs the town in search of her. At the hospital, Lucy is placed in a quiet ward and remains unconscious, a fragile state that heightens the suspense of every move around her. Wade, watching from the nearby shrubbery, realizes that if she lives she could identify him, sealing his fate with a murder conviction, so he resolves to finish her off—despite Barney’s protests. The tension between the two criminals intensifies as Wade grows more determined and Barney shows signs of doubt.
Wade’s murderous plan leads him to attempt to enter the hospital to suffocate Lucy, but he is repeatedly foiled by a mix of interruptions and vigilance: an elderly patient nearby, the nurse’s boyfriend who is an expectant father, and the watchman with his dog on rounds, all conspiring to block his stealthy moves. The situation shifts when Wade adopts a disguise as a hospital orderly and finally takes Lucy toward the operating theatre, intending to end the threat once and for all. Just as the act seems certain, Barney makes a sudden reappearance, interrupting Wade and throwing the chilling plan back into jeopardy.
What began as a routine night at the cinema spirals into a tense game of cat and mouse, where the clock shrinks around Lucy as the hospital becomes a fortress of watchful eyes and narrow escapes. The story moves with a quiet, methodical pace, focusing on the fragility of Lucy’s condition, the mounting paranoia of Wade, and the uneasy alliance and conflict between Wade and Barney as they navigate the consequences of their crime. In the end, the narrative keeps its promise to stay true to what happened, letting the threat hinge on Lucy’s uncertain fate and the abrupt return of Barney to halt Wade’s deadly plan.
