Any experience with rear brakes dragging on Tasmin?

[2001f4s]

New owner here. On a 30 mile drive home after purchase, I noticed the rear brakes dragging/smoking. Got the car home, but the brakes were fading heavily. Adjusted the handbrake and flushed the brake fluid in the hopes that would resolve the issue. The rear brakes are still smoking. Was thinking I would remove the pads for the handbrake, and drive again to attempt to isolate the issue. Brake pads are brand new buy the way and rotors looks good too. Is this a common issue? Any input would be appreciated.

[2001f4s]

Thanks Bluewedgy. That is very helpful.

[2001f4s]

Finally got around to getting my car on a lift and checking the rear brakes. Emergency Brake was not the issue. Rear brake slides just needed to be greased, and now the brakes seem to be working well. Thanks all for the advice. I am sure that I will be back soon with additional questions.