Gantz

Drawn into the orbit of a strange black sphere after dying, the chosen are offered a possible path back to life. Its price is a series of savage assignments: hunt aliens concealed among ordinary people, with death a final consequence if they fall again.

This 2004 TV series runs for 13 episodes, mixing sci-fi and supernatural action with horror, drama, and psychological unease. Its central tension comes from the gap between the hope of reclaiming mortality and the ruthless violence demanded in return.

• A chilling supernatural premise
• Brutal alien-hunting action
• Psychological stakes and dread

Fans of sci-fi horror, supernatural action, and psychologically tense stories will find plenty to explore.