Ladyhawke is a 1985 American fantasy film directed by Richard Donner and starring Matthew Broderick, Rutger Hauer, and Michelle Pfeiffer.In twelfth century Europe, Philippe "The Mouse" Gaston is a thief facing execution who escapes from the dungeon of Aquila via the sewers, and flees to the countryside. The corrupt Bishop of Aquila is furious because no one has ever escaped from his prison. He sends his Captain of the Guard, Marquet, to hunt down Philippe. At a country tavern, Philippe offers to buy a drink for anyone who will celebrate with him, for he is the only man to have seen the inside of Aquila's prisons and lived. Unfortunately for him, Marquet and his men are drinking in disguise. As they try to apprehend Philippe, they are foiled by a mysterious black knight who reveals himself to be their former Captain, Etienne of Navarre. Marquet rides back to Aquila to warn the Bishop of Navarre's return. The Bishop summons Cezar, the wolf trapper.
Navarre travels with a well-trained hawk. He saved Philippe because of his boast about escaping from Aquila's dungeon and needs Philippe's unique knowledge to lead him inside Aquila to kill the Bishop. That night, Philippe is saved from a murderer by an enormous black wolf. He also encounters a beautiful blonde woman, who mysteriously greets the wolf as though they are old companions.
Navarre and the hawk are wounded by crossbows in another encounter with the Bishop's men. Navarre sends the hawk with Philippe to the old monk Imperius to heal her. At Imperius' ruined castle, Philippe places the hawk on a table. When Isabeau appears in the hawk's place, with a crossbow arrow through her left breast, Philippe realizes that she is the hawk. Imperius reveals that the hawk is a woman named Isabeau d'Anjou, who came to live in Aquila after her father, the Count of Anjou, died fighting in the Crusades. All who saw her fell in love with her, including the Bishop, but Isabeau was already in love with Etienne, with whom she secretly exchanged vows.
Accidentally betrayed by their confessor, Imperius, they fled. In his insane jealousy, the Bishop made a demonic pact to ensure that they would be "Always together; eternally apart". By day Isabeau becomes a hawk, and by night Navarre becomes a wolf. Neither has any memory of their half-life in animal form. Only at dusk and dawn of each day can they see each other in human form for one fleeting moment, but they can never touch.
Imperius tells Navarre that the curse can be broken in two days at the castle, if both Navarre and Isabeau appear before the Bishop in their human form. Navarre knows this is impossible, but Imperius insists that there will be a day without night and a night without day when the Bishop is taking the clergy's confessions in the cathedral. Navarre dismisses Imperius as an old drunk. He proceeds to Aquila intent on simply murdering the Bishop, knowing that will make the curse irrevocable. Philippe, convinced by Imperius, joins with him to convince Isabeau; with all three ranged against him, Navarre agrees to their plan.
The next night, with Navarre in wolf form in a crude cage, Imperius and Isabeau enter Aquila through the main gate while Philippe swims in via the sewers, retracing his escape route. Before his attack, Navarre orders Imperius to euthanize the hawk if he hears the church bells ring, because that will mean Navarre has failed and is dead. Philippe infiltrates the clergy confession and unlocks the cathedral doors. Navarre rides into the church and duels with Marquet. During their bout, Marquet throws his helmet at Navarre and breaks a window. As the duel continues, Navarre sees a solar eclipse through the broken window, reminding him of Imperius' plan to break the curse. A guard rings the bells, and Navarre thinks that Imperius has killed the hawk. In a rage, he kills Marquet. He is just about to kill the Bishop as Isabeau appears in the cathedral. Together, they stand before the Bishop, breaking the curse. When the Bishop flies into a rage and attempts to kill Isabeau, Navarre throws his sword through the Bishop's chest. Isabeau and Navarre embrace in the cathedral.