Tune In Tonight: ‘Do No Harm’ makes no sense

”Do No Harm” (9 p.m., NBC) offers a curious blend of medical procedural mixed with a 21st-century update of “Dr. Jekyll and Mr. Hyde.”

Handsome and headstrong, neurosurgeon Jason Cole (Steven Pasquale, “Rescue Me”) has a devil of a time multitasking. From 8:25 a.m. to 8:25 p.m., he’s the darling of his patients and quite a few of his colleagues. But in the dark hours, he turns into Ian Price, a violent sadist. And all of Price’s vile actions reflect poorly on the good doctor.

For years, Dr. Cole has been keeping Price bottled up with narcotics, essentially putting himself in a 12-hour coma every night. And imagine what an 8:25 bedtime does to his dating life?

But lately he’s begun to prove resistant to even the strongest doses. Colleagues convince him that it would be better to confront the evil Ian and work out his demons. His decision to do just that offers an excuse for future helpings of “Harm.”

Don’t expect too many — and not just because it’s up against the popular “Elementary” on CBS. Forgetting the fact that it’s nonsensical, “Harm” just can’t find the right tone. Saddled with a preposterous story, “Harm” plays it straight, which makes it silly.

• Tonight brings the hourlong series finale of “30 Rock” (7 p.m., NBC).

At its best and most ridiculous, “30 Rock” was the live-action sitcom’s answer to cartoons like “Family Guy” and “The Simpsons,” comedies laced with pop culture references. Most of all, the show will be remembered for allowing Alec Baldwin to run away with Jack Donaghy. Baldwin took the two-dimensional character of a corporate climber and allowed him to grow before our eyes into a man beset with family baggage, ethnic hang-ups, class resentments and psychosexual neuroses. It was dazzling to behold.

Tonight’s other highlights

• Reese is kidnapped on “Person of Interest” (8 p.m., CBS).

• On two episodes of “The Office” (NBC): Jim’s replacement (8 p.m.), vandalism (8:30 p.m.).

• The gang makes a fundraising calendar on “Glee” (8 p.m., Fox).

• Arizona finds a kindred spirit on “Grey’s Anatomy” (8 p.m., ABC).

• Charlie’s dad needs help on “Anger Management” (8:30 p.m., FX).

• Olivia comes apart on “Scandal” (9 p.m., ABC).