“Vincenzo” (빈센조)

The showrunners behind “Vincenzo” took their time in letting the highly engaging story unfold in a believable way. Well, as believable a story as you can have about a Korean-born child who ends up becoming a consigliere for a top mafia don in Italy. This series is one of Song Joong-Ki’s strongest K-dramas.

“Penthouse: War in Life (Season 2)” (펜트하우스)

This second season of “Penthouse” is full of subterfuge, a revelation about who one of the students’ real father is and lots and lots of comeuppance. Oh, and there’s the murder of another teenage student, too.

“Tomorrow, With You” (내일 그대와)

“Tomorrow, With You” has so many wonderful elements — especially the adorable chemistry between the two leads. But the frustrating part was watching just about everyone in the series keep integral secrets from each other in an attempt to change — and protect — their future.

“Sweet Home” (스위트홈)

“Sweet Home” has some incredible highs. But unlike “Kingdom” or “Uncanny Counter,” where action supplements the storyline, “Sweet Home” has too much mediocre filler to make it a truly great K-drama.

“Lovestruck in the City” (도시남녀의 사랑법)

Most of the characters in “Lovestruck in the City” would’ve benefited with some therapy to work things through and move on from unhealthy relationships that should’ve been severed early on.

“Kingdom” (킹덤)

Like “Train to Busan,” “Kingdom” was released well before the coronavirus outbreak cause pandemonium worldwide. Both are sociopolitical projects disguised as zombie horror thrillers, where those in power don’t try to prevent the outbreak, so much as they try to stop news of the outbreak from being released. The public’s ignorance suits their own needs.