INDIANAPOLIS — Very ugly.

And very familiar.

It happens to Andy Dalton and the Bengals every year, which is why that incredible streak is now 24 years and counting since Cincinnati’s most recent playoff win.

The Bengals made NFL history on Sunday when they lost an opening-round playoff game for the fourth year in a row.

Andrew Luck took apart their secondary, Dalton and the offense went nowhere in the second half, and the Bengals lost 26-10, extending their excruciating stretch of playoff futility.

No matter what they accomplish during the season — and their four straight playoff appearances are a franchise record — they come unglued in the biggest games.

“In the big moments, the guys that are our big guys have to make the plays,” left tackle Andrew Whitworth said.

Instead, they shrink.

And it starts with the quarterback.

In his four playoff games, Dalton has completed only 56 percent of his passes for 873 yards with 12 sacks, one touchdown, six interceptions, two fumbles and a passer rating of 57.8. Dalton is tied with Warren Moon for most consecutive opening-round playoff losses by a quarterback in NFL history, according to STATS.

Dalton got a big contract extension before the season.