WITCH HOUSE | Though no doubt one of his chillier plays, MACBETH is usually a popular choice in summer months among Maine theaters inclined toward Shakespeare. It’s also one of his most varyingly interpreted. Last year saw Fenix’s ribbon-bloody rendition in the park, as well as Freeport Factory Stage’s dark, LED-laden version and its soundtrack of vintage Nine Inch Nails. If you’re playing collect-them-all, head to the Players’ Ring tonight, where the Seacoast theater collective open a three-week run of the Scottish play at 8. $12-15 at 105 Marcy St. 603.436.8123.