Where can I watch Mantis for free?

Watch Mantis free in HD on Castle. Download the Castle App to stream the full movie with English, Hindi audio — no subscription, no signup needed.

What languages is Mantis available in?

On Castle, Mantis is available in English, Hindi, all in HD.

Si-wan Yim stars in Mantis, alongside Park Gyuyoung and Woo-jin Jo in lead roles.

When was Mantis released?

Mantis was released on 2025-09-26, and is now streaming free on Castle.

Is the Castle App safe to download?

Yes. The Castle APK is a verified safe file. It requires only basic Android permissions and does not need root access. Compatible with Android 6.0 and above.

Mantis

2025•113 minIMDB 5.3

Directed by Tae-Sung Lee and brought to life by Si-wan Yim, Mantis (2025) unfolds in South Korea as Si-wan Yim faces The secret society of contract killers falls into chaos, unleashing a new breed of assassins. With old rules in ruins, who dares claim the shadows?. Co-starring Park Gyuyoung, this Thriller feature delves into thriller, delivering Thriller that keeps audiences engaged from opening scene to final frame.