At the End of the Tunnel is a story about Joaquín, a wheelchair-bound computer engineer facing the threat of losing his house due to debt to the bank.
Desperate to save his home, Joaquín decides to rent a room to exotic dancer Berta and her daughter Betty, who has been mute for two years.
As Joaquín grapples with emotional baggage from the loss of his wife and daughter in a tragic accident, Berta and Betty bring their own struggles into his life.
Despite their initial differences, Joaquín, Berta, and Betty form a bond that evolves from uneasy coexistence to friendship and eventually love.
However, their newfound happiness is threatened when Joaquín uncovers a plot by a gang to rob a bank, leading him to secretly investigate.
As Joaquín's plan unfolds, he discovers shocking secrets that put everything at risk.