Lady Cynthia Darrington is an adventurous and daring aviatrix known for her independent spirit and passion for flying. At a social gathering hosted by Sir Christopher Strong’s wife, Lady Elaine Strong, Cynthia meets the devoted yet rigid Member of Parliament, Christopher Strong. Despite their disparate worlds—Cynthia’s being one of risk and adventure, while Christopher’s is entrenched in responsibility and tradition—they feel an immediate connection. Lady Cynthia’s daring deeds and unconventional lifestyle challenge Christopher’s conservative views, sparking an intrigue neither can ignore. Meanwhile, Monica, Christopher's daughter, navigates her own tumultuous love life, further complicating the family dynamics.

As their lives intertwine, Cynthia and Christopher struggle to maintain propriety even as their feelings grow stronger. Cynthia is drawn to the stability Christopher represents, while he is captivated by her fearless independence. Their burgeoning relationship not only threatens to disrupt Christopher's domestic life with his wife but also challenges societal expectations surrounding marriage, fidelity, and gender roles. As Cynthia pushes the limits in her flying and personal life, she faces significant decisions that could alter her path forever. With pressures mounting from all sides, the delicate balance between desire and duty is tested. The choices they make will have profound implications not just for themselves but for everyone around them.