Molly house is a sophisticated brothel attended by patrons and wealthy citizens of London with a common purpose, that is to say, socialising and seeking pleasure with partners of the same sex.
The Molly house was a meeting place for James Delaney and Michael Godfrey after Delaney returned from Africa and had a meeting with some officials of the East India Company, where he discovered that Godfrey was working as a clerk. During this meeting in which Delaney forced Godfrey to play a double game with the East India Company for him, wealthy members of London society were entertained by a large group of courtesans dressed in women's clothing, both in theatrical interludes and in erotic games in dedicated private rooms. (Episode 3)
When the East India Company blew James Delaney's ship in a clear declaration of war, James broke into one of the rooms of the Molly House to attack Godfrey with a knife, holding him responsible for not having warned him in time about the Company's plans. (Episode 6)
The Molly House was later used as a secret meeting place for Godfrey, Delaney and George Chichester. The three men hatched a plan to frame Sir Stuart Strange about the sinking of the Cornwallis, a slave ship. When the King's guards arrested James Delaney at the Molly House, after he urged the courtesans to escape before the arrival of the soldiers, Benjamin Wilton investigated the scene and found the connection with Michael Godfrey and, as a consequence, his homosexuality and alliance with James Delaney, immediately reporting these findings to his superior. (Episode 7)
- Molly-house was a term used in 18th and 19th century England for a meeting place for homosexual men. As sodomy was a capital offence, the organisation of homosexual men and their activities had to be a crucial point, in order to keep the community as safe as possible from prosecution. As a consequence, molly districts seemed to appear and eventually grow in areas in which their business could be acknowledged and tolerated at the same time: such connivance could be often found in areas with a high rate of criminal acts such as theft and prostitution. Molly-houses could be considered the most organised phenomenon of London 18th century homosexual subculture. 
- Michael "Godders" Godfrey was one of the cross-dresser entertainers of the Molly house; He had a room with personal belongings upstairs.