Danielle Posner was deflated but determined when she marched into the 33rd Precinct station house last Friday.

She’d been looking forward to that night for eight months — finally getting to see the hit play “Hamilton” with her boyfriend. But when she called Ticketmaster to double-check the event codes, they came back invalid: The $350 tickets she’d bought from a Craigslist seller were fake.

Yet her tale of woe barely registered a blip on the radar of the busy cop manning the complaint-room window in the Washington Heights precinct.

“We have murders around here,” he told her.

“Well, he murdered my dream of going to Hamilton,” she said.

The 29-year-old special-ed teacher insisted the cop look at the documents she brought: printouts of the Craigslist ad, the fake tickets and photos of the text conversation with the scammer.

She also told the officer she had already set up a sting to catch the killer of her Broadway dreams. Posner’s boyfriend responded to the same deceptive Craigslist ad and planned a ticket-pickup rendezvous with the fraudster that very afternoon. She needed the cops to be there.

The NYPD agreed to step in, and 10 anti-crime unit officers were assigned to the sting.

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