Having hired Eric Catchpole as an apprentice, Lovejoy sets out to unravel the meaning of a Japanese firefly cage.As Lovejoy and Eric are in hot pursuit (on Eric's motorbike) of a lovely lady with something they want, they hit a pool of water in the road and give a drenching to Jane (Lady Felsham), who is busy unveiling a plaque. When, later, Lovejoy rings the doorbell at Felsham Hall, complex chemistry begins, and Jane is soon showing Lovejoy around her attic...

Lovejoy sets out to help a young woman to trace a pair of Meissen figures which she sold to raise cash for a drug habit. When he comes across evidence of a double-cross by Charlie Gimbert, he decides to get even.

The wife and brother of a man killed with a fabulous pair of Regency duelling pistols engage Lovejoy to find them and thus bring about the downfall of the murderer. In the process, Lovejoy puts Jane's life at risk and challenges Dr La Grange to a duel.

Sam Wendell, an old forger, dies of a heart attack while being pursued by a mysterious priest, leaving behind one of his small forgeries. Sam had told his wife it was the key to a fortune, and the priest soon tries to break into the Wendell house. Lovejoy aims to unravel the puzzle, by way of helping Sam's widow (who's left with very little) to recover anything of value. Along the way, Lovejoy dresses up as a priest.

In Venice, Lovejoy gets a job working for Caterina and Lavinia, with a view to busting their scam, and meets a Scottish forger called 'Lucky' Luciano. Lovejoy and Lucky together unravel the mystery of the Island of Rats.

At the beginning of series 2, Lovejoy has just come out of prison after serving a sentence for theft. He believes he was set up and returns to Suffolk hoping to find the villain and get even.

A mean landowner is reluctant to share an inheritance with his hard-up brother, who is a friend of Jane's. Then Lovejoy intervenes, as a favour to Jane, with a cunning plan which depends on a fake statue.

The manager of a heavy rock band wants to sell an ancient pre-Columbian solid gold statue, and it brings Inca black magic into East Anglia - including two murders. Lovejoy takes on the task of solving the mystery.

Jane's husband, Alexander, has a new business partner called Joe Gruder, but Lovejoy is suspicious of him. Jane gets a call from Lily Gruder, Joe's wife, who has a problem with some pearls and a pawnbroker, and Lovejoy decides to look into Joe's affairs. Mr Gruder does not come up smelling of roses.

Dealer Harry Catapodis has sold some fakes to Cassandra Lynch, a beautiful American widow Lovejoy knows. Caught out, Harry offers to buy the things back from Cassandra, but he admits he will then sell them on to someone else. With a Japanese business man and others, Lovejoy aims to get back at Harry - and to make some money and seduce Cassandra at the same time.

As the third series begins, Lovejoy returns to Felsham after a long break in Spain, where he was trying (without marked success) to learn to paint. He quickly seeks out Tinker (who has joined a monastery), Jane, who has a new look, and Eric, now working as a security guard. Victoria Cavero, an old friend of Jane's, comes to stay, and Lovejoy loses no time in falling for her. Victoria wants to sell a South American gold ring, and the ring sets in motion strange events for Lovejoy and Jane, including safecracking, kidnapping, polo and betrayal.

Lovejoy is spending more and more time with Victoria, not so much on his business. Together with Jane and Alexander, he and Victoria go away for the weekend at a friend's cottage. Meanwhile, Lovejoy buys some drawings for a song and sells them to an art gallery for a good profit. He is shaken when the pictures are denounced as fakes - even the artist says they are not his, but Lovejoy is sure they are. What is going on?

Jane decides to sell an Anatolian rug. When it comes up for auction, an old lady at the sale, Harriet Fisher, buys a Berber rug for her dog, but a young Arab who also wanted it promptly steals it from Harriet. Lovejoy is curious and decides to investigate... Meanwhile, Alexander and Jane are quarrelling badly, and they decide to split up.

Jane's old dance teacher wants Lovejoy to sell a mirror. This then leads to a deal which involves the apparently one-eyed Roderick Frew. Jane informs Lovejoy that Alexander is broke, Felsham is in the hands of the receivers, and she is leaving.