The Felse Investigations Series by Ellis Peters

When an obnoxious former Nazi land-worker is murdered in the small English village of Comerford, Chad Wedderburn, classics master and hero of the Resistance in WWII, is accused of the murder. But none of his students believes he is guilty, including Dominic Felse, who discovered the body. Dominic resolves to discover the true murderer.

A millionaire is murdered and Inspector Felse, after sifting through the few shreds of evidence, finally arrests Kitty Norris, his teenaged son Dominic's first love. A young man's infatuation soon becomes something far more dangerous, though, as Dominic takes on Kitty's cause--in direct opposition to his father's investigation.

When world famous singer Maggie Tressider crashes her car on the way to a concert, she wakes up in hospital, dazed, in a post-operative shock - and haunted. From some secret place in her subconscious arises the awful conviction that somehow, at some time in the past she has been responsible for a death. A psychiatrist, her doctor suggests, might lay the nameless spectre to rest. But Maggie chooses a very diffrent expert to find the truth for her.

The knocker hung on a very special door - oak, heavy, with a late-Gothic arch, and apparently a late-Gothic curse. Then the door was moved from an old house, once an abbey, to the village church. Legend held that sinners who seized the knocker had their hands burned by the cold iron. But Gerry Bracewell didn't die of burns, neither did a second victim. Had they knocked on death's door, or was a more down-to-earth killer at large?