If summer calls for sans souci, seaside days of sun and sticky sand, then summer nights, especially Fridays, demand a touch of gold bling and a white linen blouse to accentuate that tan, plus just enough coconut rum to help lull you to sleep by the sound of lapping waves ... but watch your back, and your neck. Blackbeard's in town for the summer and not since Jaws has the beach looked more inviting, relaxing ... and deadly. In a sea of fictionalized Blackbeards, the latest incarnation cavorts freely outside the traditional, Pyrate King design book. Clean-shaven (gone is his namesake beard tied with multiple bows of red and gunpowder fuses), bald and casually styled in island linens and sandals, casting off his trademark black velvet frock coats and leather bucket-top boots, NBC's Blackbeard appears more Gob Bluth than Rob Zombie. A mesmerizing figure to start, John Malkovich (Shadow of the Vampire, Being John Malkovich, Dangerous Liaisons, The Portrait of a Lady) portrays the 18thC. pirate with a soothing deadliness that lures the viewer into a unsuspecting trance: his escalating diatribes seep forth with an almost musical, rhythmic, Eminem-cadence, like an unsuspecting frog in a warm pot of slowly boiling water. Before you, or the frog, realize what's occurred, your kidney has been cut out; but Blackbeard has left you…