The play is divided into five acts, each of which focuses on a different one of the humours. The humours are: blood (sanguine), phlegm (melancholy), choler (irascible), and melancholy (sad). Each of the characters in the play is dominated by one of the humours, and this affects their behaviour and personality.
The main character of the play is Kitely, a wealthy merchant who is married to a young woman named Dame Kitely. Kitely is a jealous man, and he is constantly worried that his wife will be unfaithful to him. This jealousy leads him to act in a ridiculous and obsessive manner, and he becomes a figure of fun for the other characters in the play.
Another important character in the play is Bobadill, a braggart soldier who is always boasting about his exploits. Bobadill is a coward and a liar, and he is constantly getting himself into trouble. He is also a social climber, and he is always trying to impress the other characters with his wealth and social status.
The play also features a number of other characters, including: Brainworm, Kitely's servant, who is a clever and resourceful schemer; Justice Clement, a pompous and self-important judge; Master Stephen, a country bumpkin who is always getting into trouble; and Wellbred, a young gentleman who is friends with Kitely and Bobadill.
Every Man In His Humour is a witty and entertaining comedy that satirizes the excesses of human nature. The play is full of colourful characters and clever dialogue, and it is a classic of Elizabethan drama.