A Breaking Bad fanatic killed a police officer and dissolved his body in the bath after using a gay dating app to invite him to his flat for a drug-fuelled sex party, a court heard.

Stefano Brizzi copied a scene in the American drama by dismembering the body of PC Gordon Semple and dissolving it in an acid bath after strangling him, jurors at the Old Bailey were told.

The 59-year-old police officer had arranged via the Grindr app to go to his alleged killer’s south London flat for “hot, dirty, sleazy” sex while he was on duty on April 1.

Brizzi was allegedly in the process of throttling the officer when he turned away another man who had arrived for the sex party.