Our Mutual Friend is the last of Charles Dickens’ novels, published serially between 1864 and 1865. Like many of Dickens’ works, it addresses social concerns like how the poor and destitute are treated, but tempers these more serious themes with humor and satire.

The novel opens with the retrieval of the body of a drowned man from the Thames river—a body which is identified as that of John Harmon, heir to his father’s huge fortune. What happens to this fortune and to the other people named in the will make up a large part of the complex plot.

Though Our Mutual Friend wasn’t especially well regarded at the time of publication, its critical reputation has improved in later years. It has been adapted into several silent films, but its length and the complexity of its plot make it more suitable for long-form television, with several successful adaptations having been made.