Summer is here, and with it, the latest in suspense and crime fiction. “Summer House with Swimming pool” by Herman Koch is an “addictive” and “devious” follow-up to 2013’s “The Dinner.” When actor Ralph Meier ends up dead at his summer house, his doctor, a guest, is implicated. Although Koch is not a mystery writer, he succeeds at maintaining suspense while writing a character study in sharp, incisive prose. In “Mr. Mercedes by Stephen King, a retired detective gets a crazed note from a suepct in a cold case. The man, who had once driven his Mercedes through a crowd of people and escaped, now promises to strike again. “Midnight in Europe” by Alan Furst is a tense spy story set during the Spanish Civil War. Cristián Ferrar, a Spanish émigré agrees to run guns for the anti-Fascist republicans, even if he must deal with the Soviets to do so. Also in the historic mode is the second season of “The Bletchey Circle” (DVD). Four women, code-breakers during the world war, use their knowledge of pattern recognition to solve crimes which the police are unwilling to investigate.