An egocentric artillery captain and his venomous wife engage in savage unremitting battles in their isolated island fortress of the coast of Sweden at the turn of the century. Alice, a former actress who sacrificed her career for secluded military life with Edgar, reveals on the occasion of their 25th wedding anniversary, the veritable hell their marriage has been. Edgar, an aging schizoid who refuses to acknowledge his severe illness, struggles to sustain his ferocity and arrogance with an animal disregard for other people.

Macbeth, the Thane of Glamis, receives a prophecy from a trio of witches that one day he will become King of Scotland. Consumed by ambition and spurred to action by his wife, Macbeth murders his king and takes the throne for himself.