A lot of us are reading more these days, what with sports, concerts, restaurants, and theatre all pretty much shut down. Here's a book I just published you might want to consider, Murder at the Office Christmas Party. Those who have read it say that parts of it have the warm feel of a "cozy mystery" but the overall story has the complexity of an Ellery Queen mystery.
The blurb for it:
Lieutenant Mike Randall had never had a case like it before.
There were at least six different suspects, and probably more, and every one of them had the MMO – means, motive, and opportunity to kill Linda Batchly at the Arttekko Christmas party. He couldn’t pin it on anyone, though. The evidence against any one of them wasn’t compelling, and it didn’t begin to approach “proof beyond a reasonable doubt.”
The case kept him busy for nearly a year. Eventually, he was forced to move on to other active cases, and the murder of Linda Batchly was relegated to the cold case files. He fought having her murder declared a cold case, but there was nothing he could do or say to keep the file active. He hadn’t come up with any new information after the first week, and he had to move on.
But the case stuck in his mind...