Sidney and Geordie go for a night out at Johnny Johnson's London jazz club, but soon discover that policemen and clergymen can never truly be off duty.
Sidney gives up alcohol and tries to renew his focus on clerical duties, but is dragged into another case when there are mysterious deaths in the village.
When Amanda's engagement ring is stolen on the night a murder is committed, Sidney and Geordie investigate whether there is a connection between the two crimes.
In the village of Grantchester, the funeral of a parishioner leads vicar Sidney Chambers to become involved in a murder investigation - and a confrontation with the local police.