The Office Wife

The Office Wife is a 1930 American PreCode romantic drama film directed by Lloyd Bacon, released by Warner Bros., and based on the novel of the same name by Faith Baldwin. It was the talkie debut for Joan Blondell who would become one of the major Warner Bros. stars for the following nine years.

When Larrys secretary learns of his plans to marry Linda Natalie Moorhead, the secretary has a nervous breakdown because she is in love with him herself. A new attractive, intelligent and efficient secretary, Anne Murdock Dorothy Mackaill, is hired while Larry is on his honeymoon. Larry, a workaholic, begins to neglect his wife working with his secretary, and they both fall in love. Meanwhile, his wife is seeing another man played by Brooks Benedict, with whom she falls in love.Eventually, Larry kisses Anne while they are working together at his apartment, while Linda makes love with her young gigolo, who gives her the key to his apartment and says goodnight. Linda returns to her husband after giving them enough time to compose themselves and tells Larry that they should go to bed as it is very late. Anne watches as Larry goes to the bedroom with his wife and closes the door behind him. She is heartbroken and decides she will give him her resignation in the morning.clarification needed why? ........

Source: Wikipedia