I am very sure the book I am searching for is called BLUE MONDAY. It’s about a group of adults that took a certain drug in their student days that was beginning to affect them years later and turning them into killers. The cover is a photo of a bald headed man with a maniacal laugh and a big knife in his hand. It was published and released in the the 1970s.
Stump the Bookseller
New format, same book stumper solving.
This is actually “Blue Sunshine” by Ken Johnson. It’s a novelization of the 1977 movie of the same name.
Jack thanks a million.
Jack thank you very much indeed. You’re a genius.