Captain Heimrich teams up with a professor to teach a killer a lesson in this mystery from the authors of the "excellent" Mr. and Mrs. North series (The New Yorker).   Capt. M. L. Heimrich of the New York State Police may not have the flash of hard-boiled city detectives, but there's no lead the intrepid investigator won't follow until his every hunch is satisfied . . .   When Walter Brinkley--professor emeritus of English literature--throws a cocktail party for newlywed friend Paul Craig and his bride, he has no idea the celebratory affair will spark a chain of events ending in a string of scandalous murders.   The first victim is beautiful party guest Caroline Wilkins, shot while sunbathing nude in a secluded place a few days after the soiree. Called in to investigate, Captain Heimrich uncovers information that links the dead woman to a notorious scandal rag. But before he can connect all the dots, a second malicious murder throws him for a loop.   With someone in Westchester County on a killing spree, Heimrich has little time left to catch the culprit. Luckily, Professor Brinkley might have just the expertise needed to crack the case . . .   Accent on Murder is the 11th book in the Captain Heimrich Mysteries, but you may enjoy reading the series in any order.