In the year 2084 humans have settled down on Mars and society is considered a utopia. However, there's a group of 4 friends and one of them dies under strange circumstances, something that, in theory, shouldn't happen.

Sebas, a former police officer, searches for his missing companion, an intriguing new neighbor moves in next to Vicente de León, a peculiar comic artist. At first he seems like a funny and harmless guy, but as the days go by, more and more unexplained events occur that will take Vicente to the limit.

During one of her regular trips to the lake, Irene meets Nereia, the mysterious daughter of the engineer who rebuilt the dam. For some strange reason, her father keeps her isolated in the residence he built on the banks of the lake, so she has never been able to interact with other people. In an attempt to give her back the youth she has been denied, Irene invites Nereia to join her group of friends. It will be then when they discover that playing with the unknown can have a very high price.

During one of her regular trips to the lake, Irene meets Nereia, the mysterious daughter of the engineer who rebuilt the dam. For some strange reason, her father keeps her isolated in the residence he built on the banks of the lake, so she has never been able to interact with other people. In an attempt to give her back the youth she has been denied, Irene invites Nereia to join her group of friends. It will be then when they discover that playing with the unknown can have a very high price.

Alfredo gathers all his friends for one night to tell them his best-kept secret: he's immortal.