A factory worker dies in what appears to be a drunken accident, but Geordie suspects foul play. However, secret forces are determined to shut down his investigation. Mrs Maguire is confronted by a face from the past, while Sidney wrestles with his conscience, as his feelings for Amanda clash with his sense of duty - leading to accusations of hypocrisy from Leonard.
Set against the backdrop of the real hamlet of Grantchester, the drama focuses upon the life of Sidney Chambers, a charismatic, charming clergyman who turns investigative vicar when one of his parishioners dies in suspicious circumstances.
Grantchester - Series 3, Episode 4 Synopsis and Schedule