Chrissy agrees to marry Robin's brother, Norman.
Robin and his brother vie for Chrissy's favor.
Chrissy and Jo meet Robin's handsome older brother.
Mrs. Roper cannot locate her trusty sunlamp.
The Ropers crash Robin's intimate dinner date.
The trio decide to look for a fourth flatmate.
Roper will not allow the trio to throw a party.
Concert tickets bring Chrissy instant popularity.
Chrissy takes some plants from the Ropers' garden.
Robin interrupts Chrissy's meeting with a boyfriend.
Robin tests a money-making scheme on Mrs. Roper.
Chrissy and Robin try to move a piano upstairs.
Chrissy makes a home movie starring Robin and Jo.
Roper's tax records interest the tax department.
Chrissy's mother encourages her to marry Robin.
Robin is named father of a pregnant woman's child.
Maintenance work forces the trio out of their flat.
Robin samples some of Roper's strong home-brew.
Vain Roper strolls about London in a new toupee.
Chrissy sits in for ailing Robin at a poker game.
The trio protest Roper's plans to convert the flat.
Robin learns the identity of Chrissy's secret admirer.
Robin offers to protect Chrissy from a mouse.
Mrs. Roper offers to teach Robin how to dance.
Robin invites a girl in while the others are out.
Robin's friend Larry moves in with the trio.
Robin fails his exams and decides to move out.
Babysitting allows Chrissy and Robin time alone.
Mr. Roper attacks Robin's German dinner guest.
Robin is jealous when Chrissy dates an older man.
Robin unwillingly tangles with a local bully.
The trio throws a party while the Ropers are away.
Robin violates the lease by bringing a dog home.
Well-meaning Chrissy treats Robin's influenza.
Suspicions abound when the rent money disappears.
Chrissy resents Jo's presence in the apartment.
Chrissy flirts with seemingly indifferent Robin.
Chrissy's mother arrives for an overnight visit.
Chrissy and Jo share an apartment with a man.